Finding the Third Proportional to 550,472 and 850,761.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,472 : 850,761.50 = 850,761.50 : x
2. Step 2: Convert to fraction form
   550,472/850,761.50 = 850,761.50/x
3. Step 3: Cross multiply
   550,472x = 850,761.50 × 850,761.50
4. Step 4: Simplify right side
   550,472x = 723,795,129,882.25
5. Step 5: Solve for x
   x = 723,795,129,882.25/550,472
6. Step 6: Final answer
   x = 1,314,862.75