Finding the Third Proportional to 31,513,398 and 68,548,260

Step by Step Solution

1. Step 1: Write the proportion equation
   31,513,398 : 68,548,260 = 68,548,260 : x
2. Step 2: Convert to fraction form
   31,513,398/68,548,260 = 68,548,260/x
3. Step 3: Cross multiply
   31,513,398x = 68,548,260 × 68,548,260
4. Step 4: Simplify right side
   31,513,398x = 4,698,863,949,027,600
5. Step 5: Solve for x
   x = 4,698,863,949,027,600/31,513,398
6. Step 6: Final answer
   x = 149,106,863.98