Finding the Third Proportional to 111.94 and 245.91

Step by Step Solution

1. Step 1: Write the proportion equation
   111.94 : 245.91 = 245.91 : x
2. Step 2: Convert to fraction form
   111.94/245.91 = 245.91/x
3. Step 3: Cross multiply
   111.94x = 245.91 × 245.91
4. Step 4: Simplify right side
   111.94x = 60,469.88
5. Step 5: Solve for x
   x = 60,469.88/111.94
6. Step 6: Final answer
   x = 540.21