Finding the Third Proportional to 115.69 and 247.56

Step by Step Solution

1. Step 1: Write the proportion equation
   115.69 : 247.56 = 247.56 : x
2. Step 2: Convert to fraction form
   115.69/247.56 = 247.56/x
3. Step 3: Cross multiply
   115.69x = 247.56 × 247.56
4. Step 4: Simplify right side
   115.69x = 61,287.19
5. Step 5: Solve for x
   x = 61,287.19/115.69
6. Step 6: Final answer
   x = 529.77