Finding the Third Proportional to 10,404 and 13,149

Step by Step Solution

1. Step 1: Write the proportion equation
   10,404 : 13,149 = 13,149 : x
2. Step 2: Convert to fraction form
   10,404/13,149 = 13,149/x
3. Step 3: Cross multiply
   10,404x = 13,149 × 13,149
4. Step 4: Simplify right side
   10,404x = 172,896,201
5. Step 5: Solve for x
   x = 172,896,201/10,404
6. Step 6: Final answer
   x = 16,618.24