Finding the Third Proportional to 542,713.50 and 797,809.50

Step by Step Solution

1. Step 1: Write the proportion equation
   542,713.50 : 797,809.50 = 797,809.50 : x
2. Step 2: Convert to fraction form
   542,713.50/797,809.50 = 797,809.50/x
3. Step 3: Cross multiply
   542,713.50x = 797,809.50 × 797,809.50
4. Step 4: Simplify right side
   542,713.50x = 636,499,998,290.25
5. Step 5: Solve for x
   x = 636,499,998,290.25/542,713.50
6. Step 6: Final answer
   x = 1,172,810.33