Finding the Third Proportional to 31,931,328.38 and 69,907,793.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,931,328.38 : 69,907,793.63 = 69,907,793.63 : x
2. Step 2: Convert to fraction form
   31,931,328.38/69,907,793.63 = 69,907,793.63/x
3. Step 3: Cross multiply
   31,931,328.38x = 69,907,793.63 × 69,907,793.63
4. Step 4: Simplify right side
   31,931,328.38x = 4,887,099,609,515,591
5. Step 5: Solve for x
   x = 4,887,099,609,515,591/31,931,328.38
6. Step 6: Final answer
   x = 153,050,306.96