Finding the Third Proportional to 31,142,829 and 68,150,654

Step by Step Solution

1. Step 1: Write the proportion equation
   31,142,829 : 68,150,654 = 68,150,654 : x
2. Step 2: Convert to fraction form
   31,142,829/68,150,654 = 68,150,654/x
3. Step 3: Cross multiply
   31,142,829x = 68,150,654 × 68,150,654
4. Step 4: Simplify right side
   31,142,829x = 4,644,511,640,627,716
5. Step 5: Solve for x
   x = 4,644,511,640,627,716/31,142,829
6. Step 6: Final answer
   x = 149,135,829.65