Finding the Third Proportional to 31,747 and 67,717

Step by Step Solution

1. Step 1: Write the proportion equation
   31,747 : 67,717 = 67,717 : x
2. Step 2: Convert to fraction form
   31,747/67,717 = 67,717/x
3. Step 3: Cross multiply
   31,747x = 67,717 × 67,717
4. Step 4: Simplify right side
   31,747x = 4,585,592,089
5. Step 5: Solve for x
   x = 4,585,592,089/31,747
6. Step 6: Final answer
   x = 144,441.75