The world's largest pumpkin weighed:

While an average-sized is:

First, we must have both in the same unit of measurement. But we already know that 1kg = 1,000g. For this reason, we can rewrite:
![W_{\text{average}}=5\operatorname{kg}]()
To know how much the big pumpkin weighs more than the averaged-sized, we just need to subtract the averaged-sized from the Big pumpking weigh.
![\text{Difference}=W_{\text{Big}}-W_{\text{average}}=1,810-5=1,805\operatorname{kg}]()
The 2010 world-record pumpkin weighs 1,805 kilograms more than an average-sized pumpkin.
The solution is:
1805 kg