Finding the Third Proportional to 8,124.75 and 12,132.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,124.75 : 12,132.56 = 12,132.56 : x
2. Step 2: Convert to fraction form
   8,124.75/12,132.56 = 12,132.56/x
3. Step 3: Cross multiply
   8,124.75x = 12,132.56 × 12,132.56
4. Step 4: Simplify right side
   8,124.75x = 147,199,072.82
5. Step 5: Solve for x
   x = 147,199,072.82/8,124.75
6. Step 6: Final answer
   x = 18,117.37