1. The problem is to calculate the difference between two products: $29.29 \times 108$ and $19.77 \times 108$. 2. We use the distributive property of multiplication over subtraction: $$a \times c - b \times c = (a - b) \times c$$ 3. Applying this property, we get: $$(29.29 - 19.77) \times 108$$ 4. Calculate the difference inside the parentheses: $$29.29 - 19.77 = 9.52$$ 5. Now multiply the result by 108: $$9.52 \times 108 = 1028.16$$ 6. Therefore, the final answer is $1028.16$.