Finding the Third Proportional to 105.18 and 150.56

Step by Step Solution

1. Step 1: Write the proportion equation
   105.18 : 150.56 = 150.56 : x
2. Step 2: Convert to fraction form
   105.18/150.56 = 150.56/x
3. Step 3: Cross multiply
   105.18x = 150.56 × 150.56
4. Step 4: Simplify right side
   105.18x = 22,667.30
5. Step 5: Solve for x
   x = 22,667.30/105.18
6. Step 6: Final answer
   x = 215.51