Finding the Third Proportional to 20,728 and 31,016

Step by Step Solution

1. Step 1: Write the proportion equation
   20,728 : 31,016 = 31,016 : x
2. Step 2: Convert to fraction form
   20,728/31,016 = 31,016/x
3. Step 3: Cross multiply
   20,728x = 31,016 × 31,016
4. Step 4: Simplify right side
   20,728x = 961,992,256
5. Step 5: Solve for x
   x = 961,992,256/20,728
6. Step 6: Final answer
   x = 46,410.28