Finding the Third Proportional to 12,343.50 and 17,639.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,343.50 : 17,639.25 = 17,639.25 : x
2. Step 2: Convert to fraction form
   12,343.50/17,639.25 = 17,639.25/x
3. Step 3: Cross multiply
   12,343.50x = 17,639.25 × 17,639.25
4. Step 4: Simplify right side
   12,343.50x = 311,143,140.56
5. Step 5: Solve for x
   x = 311,143,140.56/12,343.50
6. Step 6: Final answer
   x = 25,207.04