Finding the Third Proportional to 8,483.97 and 12,480.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,483.97 : 12,480.88 = 12,480.88 : x
2. Step 2: Convert to fraction form
   8,483.97/12,480.88 = 12,480.88/x
3. Step 3: Cross multiply
   8,483.97x = 12,480.88 × 12,480.88
4. Step 4: Simplify right side
   8,483.97x = 155,772,288.00
5. Step 5: Solve for x
   x = 155,772,288.00/8,483.97
6. Step 6: Final answer
   x = 18,360.78