Finding the Third Proportional to 16,500.13 and 21,879.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,500.13 : 21,879.38 = 21,879.38 : x
2. Step 2: Convert to fraction form
   16,500.13/21,879.38 = 21,879.38/x
3. Step 3: Cross multiply
   16,500.13x = 21,879.38 × 21,879.38
4. Step 4: Simplify right side
   16,500.13x = 478,707,050.39
5. Step 5: Solve for x
   x = 478,707,050.39/16,500.13
6. Step 6: Final answer
   x = 29,012.33