Finding the Third Proportional to 555,757 and 861,092.50

Step by Step Solution

1. Step 1: Write the proportion equation
   555,757 : 861,092.50 = 861,092.50 : x
2. Step 2: Convert to fraction form
   555,757/861,092.50 = 861,092.50/x
3. Step 3: Cross multiply
   555,757x = 861,092.50 × 861,092.50
4. Step 4: Simplify right side
   555,757x = 741,480,293,556.25
5. Step 5: Solve for x
   x = 741,480,293,556.25/555,757
6. Step 6: Final answer
   x = 1,334,180.75