Finding the Third Proportional to 13,105.13 and 16,417.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,105.13 : 16,417.69 = 16,417.69 : x
2. Step 2: Convert to fraction form
   13,105.13/16,417.69 = 16,417.69/x
3. Step 3: Cross multiply
   13,105.13x = 16,417.69 × 16,417.69
4. Step 4: Simplify right side
   13,105.13x = 269,540,462.85
5. Step 5: Solve for x
   x = 269,540,462.85/13,105.13
6. Step 6: Final answer
   x = 20,567.56