Finding the Third Proportional to 31,225,992 and 67,664,671

Step by Step Solution

1. Step 1: Write the proportion equation
   31,225,992 : 67,664,671 = 67,664,671 : x
2. Step 2: Convert to fraction form
   31,225,992/67,664,671 = 67,664,671/x
3. Step 3: Cross multiply
   31,225,992x = 67,664,671 × 67,664,671
4. Step 4: Simplify right side
   31,225,992x = 4,578,507,701,538,241
5. Step 5: Solve for x
   x = 4,578,507,701,538,241/31,225,992
6. Step 6: Final answer
   x = 146,624,891.90