Finding the Third Proportional to 12,253.50 and 18,331.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,253.50 : 18,331.31 = 18,331.31 : x
2. Step 2: Convert to fraction form
   12,253.50/18,331.31 = 18,331.31/x
3. Step 3: Cross multiply
   12,253.50x = 18,331.31 × 18,331.31
4. Step 4: Simplify right side
   12,253.50x = 336,037,017.97
5. Step 5: Solve for x
   x = 336,037,017.97/12,253.50
6. Step 6: Final answer
   x = 27,423.76