Finding the Third Proportional to 111.06 and 240.63

Step by Step Solution

1. Step 1: Write the proportion equation
   111.06 : 240.63 = 240.63 : x
2. Step 2: Convert to fraction form
   111.06/240.63 = 240.63/x
3. Step 3: Cross multiply
   111.06x = 240.63 × 240.63
4. Step 4: Simplify right side
   111.06x = 57,901.33
5. Step 5: Solve for x
   x = 57,901.33/111.06
6. Step 6: Final answer
   x = 521.36