Finding the Third Proportional to 72.56 and 105.94

Step by Step Solution

1. Step 1: Write the proportion equation
   72.56 : 105.94 = 105.94 : x
2. Step 2: Convert to fraction form
   72.56/105.94 = 105.94/x
3. Step 3: Cross multiply
   72.56x = 105.94 × 105.94
4. Step 4: Simplify right side
   72.56x = 11,222.75
5. Step 5: Solve for x
   x = 11,222.75/72.56
6. Step 6: Final answer
   x = 154.66