Finding the Third Proportional to 10,616.77 and 14,879.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,616.77 : 14,879.72 = 14,879.72 : x
2. Step 2: Convert to fraction form
   10,616.77/14,879.72 = 14,879.72/x
3. Step 3: Cross multiply
   10,616.77x = 14,879.72 × 14,879.72
4. Step 4: Simplify right side
   10,616.77x = 221,405,942.89
5. Step 5: Solve for x
   x = 221,405,942.89/10,616.77
6. Step 6: Final answer
   x = 20,854.35