Finding the Third Proportional to 17,728 and 39,008

Step by Step Solution

1. Step 1: Write the proportion equation
   17,728 : 39,008 = 39,008 : x
2. Step 2: Convert to fraction form
   17,728/39,008 = 39,008/x
3. Step 3: Cross multiply
   17,728x = 39,008 × 39,008
4. Step 4: Simplify right side
   17,728x = 1,521,624,064
5. Step 5: Solve for x
   x = 1,521,624,064/17,728
6. Step 6: Final answer
   x = 85,831.68