Finding the Third Proportional to 6,240.25 and 13,728.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,240.25 : 13,728.50 = 13,728.50 : x
2. Step 2: Convert to fraction form
   6,240.25/13,728.50 = 13,728.50/x
3. Step 3: Cross multiply
   6,240.25x = 13,728.50 × 13,728.50
4. Step 4: Simplify right side
   6,240.25x = 188,471,712.25
5. Step 5: Solve for x
   x = 188,471,712.25/6,240.25
6. Step 6: Final answer
   x = 30,202.59