Finding the Third Proportional to 111.19 and 237.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111.19 : 237.56 = 237.56 : x
2. Step 2: Convert to fraction form
   111.19/237.56 = 237.56/x
3. Step 3: Cross multiply
   111.19x = 237.56 × 237.56
4. Step 4: Simplify right side
   111.19x = 56,435.94
5. Step 5: Solve for x
   x = 56,435.94/111.19
6. Step 6: Final answer
   x = 507.57