Finding the Third Proportional to 111.56 and 243.84

Step by Step Solution

1. Step 1: Write the proportion equation
   111.56 : 243.84 = 243.84 : x
2. Step 2: Convert to fraction form
   111.56/243.84 = 243.84/x
3. Step 3: Cross multiply
   111.56x = 243.84 × 243.84
4. Step 4: Simplify right side
   111.56x = 59,459.77
5. Step 5: Solve for x
   x = 59,459.77/111.56
6. Step 6: Final answer
   x = 532.97