Finding the Third Proportional to 12,393 and 25,788.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,393 : 25,788.38 = 25,788.38 : x
2. Step 2: Convert to fraction form
   12,393/25,788.38 = 25,788.38/x
3. Step 3: Cross multiply
   12,393x = 25,788.38 × 25,788.38
4. Step 4: Simplify right side
   12,393x = 665,040,285.14
5. Step 5: Solve for x
   x = 665,040,285.14/12,393
6. Step 6: Final answer
   x = 53,662.57