Finding the Third Proportional to 14,317.88 and 21,780.56

Step by Step Solution

1. Step 1: Write the proportion equation
   14,317.88 : 21,780.56 = 21,780.56 : x
2. Step 2: Convert to fraction form
   14,317.88/21,780.56 = 21,780.56/x
3. Step 3: Cross multiply
   14,317.88x = 21,780.56 × 21,780.56
4. Step 4: Simplify right side
   14,317.88x = 474,392,902.82
5. Step 5: Solve for x
   x = 474,392,902.82/14,317.88
6. Step 6: Final answer
   x = 33,132.91