Finding the Third Proportional to 539,769 and 792,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   539,769 : 792,142.50 = 792,142.50 : x
2. Step 2: Convert to fraction form
   539,769/792,142.50 = 792,142.50/x
3. Step 3: Cross multiply
   539,769x = 792,142.50 × 792,142.50
4. Step 4: Simplify right side
   539,769x = 627,489,740,306.25
5. Step 5: Solve for x
   x = 627,489,740,306.25/539,769
6. Step 6: Final answer
   x = 1,162,515.34