Finding the Third Proportional to 12,480.33 and 18,976.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,480.33 : 18,976.78 = 18,976.78 : x
2. Step 2: Convert to fraction form
   12,480.33/18,976.78 = 18,976.78/x
3. Step 3: Cross multiply
   12,480.33x = 18,976.78 × 18,976.78
4. Step 4: Simplify right side
   12,480.33x = 360,118,226.61
5. Step 5: Solve for x
   x = 360,118,226.61/12,480.33
6. Step 6: Final answer
   x = 28,854.87