Finding the Third Proportional to 634,413 and 861,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   634,413 : 861,191.50 = 861,191.50 : x
2. Step 2: Convert to fraction form
   634,413/861,191.50 = 861,191.50/x
3. Step 3: Cross multiply
   634,413x = 861,191.50 × 861,191.50
4. Step 4: Simplify right side
   634,413x = 741,650,799,672.25
5. Step 5: Solve for x
   x = 741,650,799,672.25/634,413
6. Step 6: Final answer
   x = 1,169,034.68