Finding the Third Proportional to 8,728 and 10,816

Step by Step Solution

1. Step 1: Write the proportion equation
   8,728 : 10,816 = 10,816 : x
2. Step 2: Convert to fraction form
   8,728/10,816 = 10,816/x
3. Step 3: Cross multiply
   8,728x = 10,816 × 10,816
4. Step 4: Simplify right side
   8,728x = 116,985,856
5. Step 5: Solve for x
   x = 116,985,856/8,728
6. Step 6: Final answer
   x = 13,403.51