Finding the Third Proportional to 10,816.88 and 16,428.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,816.88 : 16,428.38 = 16,428.38 : x
2. Step 2: Convert to fraction form
   10,816.88/16,428.38 = 16,428.38/x
3. Step 3: Cross multiply
   10,816.88x = 16,428.38 × 16,428.38
4. Step 4: Simplify right side
   10,816.88x = 269,891,505.14
5. Step 5: Solve for x
   x = 269,891,505.14/10,816.88
6. Step 6: Final answer
   x = 24,950.97