Finding the Third Proportional to 8,760.38 and 13,396.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,760.38 : 13,396.50 = 13,396.50 : x
2. Step 2: Convert to fraction form
   8,760.38/13,396.50 = 13,396.50/x
3. Step 3: Cross multiply
   8,760.38x = 13,396.50 × 13,396.50
4. Step 4: Simplify right side
   8,760.38x = 179,466,212.25
5. Step 5: Solve for x
   x = 179,466,212.25/8,760.38
6. Step 6: Final answer
   x = 20,486.13