Finding the Third Proportional to 12,107.75 and 18,231.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,107.75 : 18,231.50 = 18,231.50 : x
2. Step 2: Convert to fraction form
   12,107.75/18,231.50 = 18,231.50/x
3. Step 3: Cross multiply
   12,107.75x = 18,231.50 × 18,231.50
4. Step 4: Simplify right side
   12,107.75x = 332,387,592.25
5. Step 5: Solve for x
   x = 332,387,592.25/12,107.75
6. Step 6: Final answer
   x = 27,452.47