Finding the Third Proportional to 12,449.57 and 18,768.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,449.57 : 18,768.62 = 18,768.62 : x
2. Step 2: Convert to fraction form
   12,449.57/18,768.62 = 18,768.62/x
3. Step 3: Cross multiply
   12,449.57x = 18,768.62 × 18,768.62
4. Step 4: Simplify right side
   12,449.57x = 352,261,047.55
5. Step 5: Solve for x
   x = 352,261,047.55/12,449.57
6. Step 6: Final answer
   x = 28,295.05