Finding the Third Proportional to 12,357.38 and 26,658.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357.38 : 26,658.75 = 26,658.75 : x
2. Step 2: Convert to fraction form
   12,357.38/26,658.75 = 26,658.75/x
3. Step 3: Cross multiply
   12,357.38x = 26,658.75 × 26,658.75
4. Step 4: Simplify right side
   12,357.38x = 710,688,951.56
5. Step 5: Solve for x
   x = 710,688,951.56/12,357.38
6. Step 6: Final answer
   x = 57,511.32