Finding the Third Proportional to 31,035,717 and 67,443,678

Step by Step Solution

1. Step 1: Write the proportion equation
   31,035,717 : 67,443,678 = 67,443,678 : x
2. Step 2: Convert to fraction form
   31,035,717/67,443,678 = 67,443,678/x
3. Step 3: Cross multiply
   31,035,717x = 67,443,678 × 67,443,678
4. Step 4: Simplify right side
   31,035,717x = 4,548,649,702,167,684
5. Step 5: Solve for x
   x = 4,548,649,702,167,684/31,035,717
6. Step 6: Final answer
   x = 146,561,772.75