Finding the Third Proportional to 11,148.57 and 16,868.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,148.57 : 16,868.09 = 16,868.09 : x
2. Step 2: Convert to fraction form
   11,148.57/16,868.09 = 16,868.09/x
3. Step 3: Cross multiply
   11,148.57x = 16,868.09 × 16,868.09
4. Step 4: Simplify right side
   11,148.57x = 284,532,520.87
5. Step 5: Solve for x
   x = 284,532,520.87/11,148.57
6. Step 6: Final answer
   x = 25,521.88