Finding the Third Proportional to 9,078.75 and 12,264.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,078.75 : 12,264.75 = 12,264.75 : x
2. Step 2: Convert to fraction form
   9,078.75/12,264.75 = 12,264.75/x
3. Step 3: Cross multiply
   9,078.75x = 12,264.75 × 12,264.75
4. Step 4: Simplify right side
   9,078.75x = 150,424,092.56
5. Step 5: Solve for x
   x = 150,424,092.56/9,078.75
6. Step 6: Final answer
   x = 16,568.81