Finding the Third Proportional to 31,948,992 and 69,979,585.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,948,992 : 69,979,585.50 = 69,979,585.50 : x
2. Step 2: Convert to fraction form
   31,948,992/69,979,585.50 = 69,979,585.50/x
3. Step 3: Cross multiply
   31,948,992x = 69,979,585.50 × 69,979,585.50
4. Step 4: Simplify right side
   31,948,992x = 4,897,142,386,751,810
5. Step 5: Solve for x
   x = 4,897,142,386,751,810/31,948,992
6. Step 6: Final answer
   x = 153,280,027.95