Finding the Third Proportional to 663,715 and 1,020,755

Step by Step Solution

1. Step 1: Write the proportion equation
   663,715 : 1,020,755 = 1,020,755 : x
2. Step 2: Convert to fraction form
   663,715/1,020,755 = 1,020,755/x
3. Step 3: Cross multiply
   663,715x = 1,020,755 × 1,020,755
4. Step 4: Simplify right side
   663,715x = 1,041,940,770,025
5. Step 5: Solve for x
   x = 1,041,940,770,025/663,715
6. Step 6: Final answer
   x = 1,569,861.72