Finding the Third Proportional to 12,687.75 and 14,996.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,687.75 : 14,996.25 = 14,996.25 : x
2. Step 2: Convert to fraction form
   12,687.75/14,996.25 = 14,996.25/x
3. Step 3: Cross multiply
   12,687.75x = 14,996.25 × 14,996.25
4. Step 4: Simplify right side
   12,687.75x = 224,887,514.06
5. Step 5: Solve for x
   x = 224,887,514.06/12,687.75
6. Step 6: Final answer
   x = 17,724.78