Finding the Third Proportional to 31,513,504 and 68,548,456

Step by Step Solution

1. Step 1: Write the proportion equation
   31,513,504 : 68,548,456 = 68,548,456 : x
2. Step 2: Convert to fraction form
   31,513,504/68,548,456 = 68,548,456/x
3. Step 3: Cross multiply
   31,513,504x = 68,548,456 × 68,548,456
4. Step 4: Simplify right side
   31,513,504x = 4,698,890,819,983,936
5. Step 5: Solve for x
   x = 4,698,890,819,983,936/31,513,504
6. Step 6: Final answer
   x = 149,107,215.12