Finding the Third Proportional to 31,142,827 and 68,150,650

Step by Step Solution

1. Step 1: Write the proportion equation
   31,142,827 : 68,150,650 = 68,150,650 : x
2. Step 2: Convert to fraction form
   31,142,827/68,150,650 = 68,150,650/x
3. Step 3: Cross multiply
   31,142,827x = 68,150,650 × 68,150,650
4. Step 4: Simplify right side
   31,142,827x = 4,644,511,095,422,500
5. Step 5: Solve for x
   x = 4,644,511,095,422,500/31,142,827
6. Step 6: Final answer
   x = 149,135,821.72