Final answer:
The cost of 3 pounds of bananas is $54.24.
Step-by-step explanation:
To solve the given proportion, we will set up a cross multiplication equation:
2/p = 3/81.36
Cross multiplying, we get:
2 * 81.36 = 3 * p
162.72 = 3p
Dividing both sides by 3, we get:
p = 162.72 / 3 = $54.24
Therefore, the cost of 3 pounds of bananas is $54.24.