Finding the Third Proportional to 115.73 and 247.89

Step by Step Solution

1. Step 1: Write the proportion equation
   115.73 : 247.89 = 247.89 : x
2. Step 2: Convert to fraction form
   115.73/247.89 = 247.89/x
3. Step 3: Cross multiply
   115.73x = 247.89 × 247.89
4. Step 4: Simplify right side
   115.73x = 61,447.83
5. Step 5: Solve for x
   x = 61,447.83/115.73
6. Step 6: Final answer
   x = 530.94