Finding the Third Proportional to 639,352 and 954,651.50

Step by Step Solution

1. Step 1: Write the proportion equation
   639,352 : 954,651.50 = 954,651.50 : x
2. Step 2: Convert to fraction form
   639,352/954,651.50 = 954,651.50/x
3. Step 3: Cross multiply
   639,352x = 954,651.50 × 954,651.50
4. Step 4: Simplify right side
   639,352x = 911,359,486,452.25
5. Step 5: Solve for x
   x = 911,359,486,452.25/639,352
6. Step 6: Final answer
   x = 1,425,442.46