Finding the Third Proportional to 68.06 and 105.56

Step by Step Solution

1. Step 1: Write the proportion equation
   68.06 : 105.56 = 105.56 : x
2. Step 2: Convert to fraction form
   68.06/105.56 = 105.56/x
3. Step 3: Cross multiply
   68.06x = 105.56 × 105.56
4. Step 4: Simplify right side
   68.06x = 11,143.44
5. Step 5: Solve for x
   x = 11,143.44/68.06
6. Step 6: Final answer
   x = 163.72