Finding the Third Proportional to 11,925.56 and 25,815.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,925.56 : 25,815.38 = 25,815.38 : x
2. Step 2: Convert to fraction form
   11,925.56/25,815.38 = 25,815.38/x
3. Step 3: Cross multiply
   11,925.56x = 25,815.38 × 25,815.38
4. Step 4: Simplify right side
   11,925.56x = 666,433,586.39
5. Step 5: Solve for x
   x = 666,433,586.39/11,925.56
6. Step 6: Final answer
   x = 55,882.78