Finding the Third Proportional to 31,806,540 and 69,244,360

Step by Step Solution

1. Step 1: Write the proportion equation
   31,806,540 : 69,244,360 = 69,244,360 : x
2. Step 2: Convert to fraction form
   31,806,540/69,244,360 = 69,244,360/x
3. Step 3: Cross multiply
   31,806,540x = 69,244,360 × 69,244,360
4. Step 4: Simplify right side
   31,806,540x = 4,794,781,391,809,600
5. Step 5: Solve for x
   x = 4,794,781,391,809,600/31,806,540
6. Step 6: Final answer
   x = 150,748,286.10