Finding the Third Proportional to 111.13 and 245.13

Step by Step Solution

1. Step 1: Write the proportion equation
   111.13 : 245.13 = 245.13 : x
2. Step 2: Convert to fraction form
   111.13/245.13 = 245.13/x
3. Step 3: Cross multiply
   111.13x = 245.13 × 245.13
4. Step 4: Simplify right side
   111.13x = 60,086.27
5. Step 5: Solve for x
   x = 60,086.27/111.13
6. Step 6: Final answer
   x = 540.71