Finding the Third Proportional to 634,899 and 861,304.50

Step by Step Solution

1. Step 1: Write the proportion equation
   634,899 : 861,304.50 = 861,304.50 : x
2. Step 2: Convert to fraction form
   634,899/861,304.50 = 861,304.50/x
3. Step 3: Cross multiply
   634,899x = 861,304.50 × 861,304.50
4. Step 4: Simplify right side
   634,899x = 741,845,441,720.25
5. Step 5: Solve for x
   x = 741,845,441,720.25/634,899
6. Step 6: Final answer
   x = 1,168,446.39