Finding the Third Proportional to 14,215.50 and 19,910.81

Step by Step Solution

1. Step 1: Write the proportion equation
   14,215.50 : 19,910.81 = 19,910.81 : x
2. Step 2: Convert to fraction form
   14,215.50/19,910.81 = 19,910.81/x
3. Step 3: Cross multiply
   14,215.50x = 19,910.81 × 19,910.81
4. Step 4: Simplify right side
   14,215.50x = 396,440,454.41
5. Step 5: Solve for x
   x = 396,440,454.41/14,215.50
6. Step 6: Final answer
   x = 27,887.90