Finding the Third Proportional to 31,513,392 and 68,548,256

Step by Step Solution

1. Step 1: Write the proportion equation
   31,513,392 : 68,548,256 = 68,548,256 : x
2. Step 2: Convert to fraction form
   31,513,392/68,548,256 = 68,548,256/x
3. Step 3: Cross multiply
   31,513,392x = 68,548,256 × 68,548,256
4. Step 4: Simplify right side
   31,513,392x = 4,698,863,400,641,536
5. Step 5: Solve for x
   x = 4,698,863,400,641,536/31,513,392
6. Step 6: Final answer
   x = 149,106,874.96