Final answer:
The correct third sentence when arranging the provided sentences into a meaningful paragraph is 'the excess water started flowing forcefully through the waterway.' This sequence logically follows the introduction of the setting and the event of the lake overflowing due to heavy rain.
Step-by-step explanation:
To arrange the sentences into a meaningful paragraph, we need to identify a logical sequence that constructs a narrative. The first sentence should introduce the setting, which is 'in the forest of madhubani, there is a big lake.' This sets the scene, making it a suitable first sentence. Following the introduction of the setting, we should look for what event causes a change or introduces a conflict.
The sentence that fits this is the statement about the heavy rain causing the lake to overflow, so this should be the second sentence. With the lake overflowing, the natural progression is to discuss the consequences or actions that follow from this event. The third sentence should therefore be about the 'excess water started flowing forcefully through the waterway.'
This explains the direct impact of the overflowing lake. The remaining sentences should then detail further events or actions that occurred as a result of the waterway's forceful flow, leading us to conclude that the correct third sentence is 'the excess water started flowing forcefully through the waterway.'