Finding the Third Proportional to 14,113.79 and 20,780.82

Step by Step Solution

1. Step 1: Write the proportion equation
   14,113.79 : 20,780.82 = 20,780.82 : x
2. Step 2: Convert to fraction form
   14,113.79/20,780.82 = 20,780.82/x
3. Step 3: Cross multiply
   14,113.79x = 20,780.82 × 20,780.82
4. Step 4: Simplify right side
   14,113.79x = 431,842,312.75
5. Step 5: Solve for x
   x = 431,842,312.75/14,113.79
6. Step 6: Final answer
   x = 30,597.20