Finding the Third Proportional to 31,491,120 and 67,812,000

Step by Step Solution

1. Step 1: Write the proportion equation
   31,491,120 : 67,812,000 = 67,812,000 : x
2. Step 2: Convert to fraction form
   31,491,120/67,812,000 = 67,812,000/x
3. Step 3: Cross multiply
   31,491,120x = 67,812,000 × 67,812,000
4. Step 4: Simplify right side
   31,491,120x = 4,598,467,344,000,000
5. Step 5: Solve for x
   x = 4,598,467,344,000,000/31,491,120
6. Step 6: Final answer
   x = 146,024,255.22