Finding the Third Proportional to 555,762 and 861,099

Step by Step Solution

1. Step 1: Write the proportion equation
   555,762 : 861,099 = 861,099 : x
2. Step 2: Convert to fraction form
   555,762/861,099 = 861,099/x
3. Step 3: Cross multiply
   555,762x = 861,099 × 861,099
4. Step 4: Simplify right side
   555,762x = 741,491,487,801
5. Step 5: Solve for x
   x = 741,491,487,801/555,762
6. Step 6: Final answer
   x = 1,334,188.89