Answer:
estimate the product of 324.739 and 231,757.22, we can round these numbers to 325 and 231,757, respectively. Then, we can use the approximation:
325 x 231,757 ≈ 75,346,925
So the best estimate for the product of 324.739 × 231,757.22 is 75,346,925. However, please note that this is an approximation and the actual product may be slightly different.