Finding the Third Proportional to 8,441.72 and 18,508.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,441.72 : 18,508.50 = 18,508.50 : x
2. Step 2: Convert to fraction form
   8,441.72/18,508.50 = 18,508.50/x
3. Step 3: Cross multiply
   8,441.72x = 18,508.50 × 18,508.50
4. Step 4: Simplify right side
   8,441.72x = 342,564,572.25
5. Step 5: Solve for x
   x = 342,564,572.25/8,441.72
6. Step 6: Final answer
   x = 40,579.96