Finding the Third Proportional to 12,132.28 and 16,303.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,132.28 : 16,303.78 = 16,303.78 : x
2. Step 2: Convert to fraction form
   12,132.28/16,303.78 = 16,303.78/x
3. Step 3: Cross multiply
   12,132.28x = 16,303.78 × 16,303.78
4. Step 4: Simplify right side
   12,132.28x = 265,813,283.05
5. Step 5: Solve for x
   x = 265,813,283.05/12,132.28
6. Step 6: Final answer
   x = 21,909.59