Finding the Third Proportional to 31,491,174 and 67,812,108

Step by Step Solution

1. Step 1: Write the proportion equation
   31,491,174 : 67,812,108 = 67,812,108 : x
2. Step 2: Convert to fraction form
   31,491,174/67,812,108 = 67,812,108/x
3. Step 3: Cross multiply
   31,491,174x = 67,812,108 × 67,812,108
4. Step 4: Simplify right side
   31,491,174x = 4,598,481,991,403,664
5. Step 5: Solve for x
   x = 4,598,481,991,403,664/31,491,174
6. Step 6: Final answer
   x = 146,024,469.95