Finding the Third Proportional to 8,508.38 and 13,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,508.38 : 13,144.50 = 13,144.50 : x
2. Step 2: Convert to fraction form
   8,508.38/13,144.50 = 13,144.50/x
3. Step 3: Cross multiply
   8,508.38x = 13,144.50 × 13,144.50
4. Step 4: Simplify right side
   8,508.38x = 172,777,880.25
5. Step 5: Solve for x
   x = 172,777,880.25/8,508.38
6. Step 6: Final answer
   x = 20,306.80