Finding the Third Proportional to 14,215.50 and 16,653.09

Step by Step Solution

1. Step 1: Write the proportion equation
   14,215.50 : 16,653.09 = 16,653.09 : x
2. Step 2: Convert to fraction form
   14,215.50/16,653.09 = 16,653.09/x
3. Step 3: Cross multiply
   14,215.50x = 16,653.09 × 16,653.09
4. Step 4: Simplify right side
   14,215.50x = 277,325,531.45
5. Step 5: Solve for x
   x = 277,325,531.45/14,215.50
6. Step 6: Final answer
   x = 19,508.67