Finding the Third Proportional to 12,131.86 and 16,335.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.86 : 16,335.42 = 16,335.42 : x
2. Step 2: Convert to fraction form
   12,131.86/16,335.42 = 16,335.42/x
3. Step 3: Cross multiply
   12,131.86x = 16,335.42 × 16,335.42
4. Step 4: Simplify right side
   12,131.86x = 266,846,007.83
5. Step 5: Solve for x
   x = 266,846,007.83/12,131.86
6. Step 6: Final answer
   x = 21,995.47