Finding the Third Proportional to 13,839.75 and 18,400.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,839.75 : 18,400.50 = 18,400.50 : x
2. Step 2: Convert to fraction form
   13,839.75/18,400.50 = 18,400.50/x
3. Step 3: Cross multiply
   13,839.75x = 18,400.50 × 18,400.50
4. Step 4: Simplify right side
   13,839.75x = 338,578,400.25
5. Step 5: Solve for x
   x = 338,578,400.25/13,839.75
6. Step 6: Final answer
   x = 24,464.20