Finding the Third Proportional to 14,342.72 and 20,161.92

Step by Step Solution

1. Step 1: Write the proportion equation
   14,342.72 : 20,161.92 = 20,161.92 : x
2. Step 2: Convert to fraction form
   14,342.72/20,161.92 = 20,161.92/x
3. Step 3: Cross multiply
   14,342.72x = 20,161.92 × 20,161.92
4. Step 4: Simplify right side
   14,342.72x = 406,503,093.69
5. Step 5: Solve for x
   x = 406,503,093.69/14,342.72
6. Step 6: Final answer
   x = 28,342.12