Finding the Third Proportional to 8,491.50 and 18,144.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,491.50 : 18,144.75 = 18,144.75 : x
2. Step 2: Convert to fraction form
   8,491.50/18,144.75 = 18,144.75/x
3. Step 3: Cross multiply
   8,491.50x = 18,144.75 × 18,144.75
4. Step 4: Simplify right side
   8,491.50x = 329,231,952.56
5. Step 5: Solve for x
   x = 329,231,952.56/8,491.50
6. Step 6: Final answer
   x = 38,771.94