Finding the Third Proportional to 8,269.03 and 12,480.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,269.03 : 12,480.47 = 12,480.47 : x
2. Step 2: Convert to fraction form
   8,269.03/12,480.47 = 12,480.47/x
3. Step 3: Cross multiply
   8,269.03x = 12,480.47 × 12,480.47
4. Step 4: Simplify right side
   8,269.03x = 155,762,100.22
5. Step 5: Solve for x
   x = 155,762,100.22/8,269.03
6. Step 6: Final answer
   x = 18,836.80