Finding the Third Proportional to 2,452.78 and 5,383.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,452.78 : 5,383.97 = 5,383.97 : x
2. Step 2: Convert to fraction form
   2,452.78/5,383.97 = 5,383.97/x
3. Step 3: Cross multiply
   2,452.78x = 5,383.97 × 5,383.97
4. Step 4: Simplify right side
   2,452.78x = 28,987,119.50
5. Step 5: Solve for x
   x = 28,987,119.50/2,452.78
6. Step 6: Final answer
   x = 11,818.06