Finding the Third Proportional to 665,671.50 and 1,081,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   665,671.50 : 1,081,522.50 = 1,081,522.50 : x
2. Step 2: Convert to fraction form
   665,671.50/1,081,522.50 = 1,081,522.50/x
3. Step 3: Cross multiply
   665,671.50x = 1,081,522.50 × 1,081,522.50
4. Step 4: Simplify right side
   665,671.50x = 1,169,690,918,006.25
5. Step 5: Solve for x
   x = 1,169,690,918,006.25/665,671.50
6. Step 6: Final answer
   x = 1,757,159.38