Finding the Third Proportional to 31,034,487 and 67,440,840

Step by Step Solution

1. Step 1: Write the proportion equation
   31,034,487 : 67,440,840 = 67,440,840 : x
2. Step 2: Convert to fraction form
   31,034,487/67,440,840 = 67,440,840/x
3. Step 3: Cross multiply
   31,034,487x = 67,440,840 × 67,440,840
4. Step 4: Simplify right side
   31,034,487x = 4,548,266,899,905,600
5. Step 5: Solve for x
   x = 4,548,266,899,905,600/31,034,487
6. Step 6: Final answer
   x = 146,555,246.75