Finding the Third Proportional to 356,651 and 725,757.50

Step by Step Solution

1. Step 1: Write the proportion equation
   356,651 : 725,757.50 = 725,757.50 : x
2. Step 2: Convert to fraction form
   356,651/725,757.50 = 725,757.50/x
3. Step 3: Cross multiply
   356,651x = 725,757.50 × 725,757.50
4. Step 4: Simplify right side
   356,651x = 526,723,948,806.25
5. Step 5: Solve for x
   x = 526,723,948,806.25/356,651
6. Step 6: Final answer
   x = 1,476,860.99