Finding the Third Proportional to 72.75 and 110.63

Step by Step Solution

1. Step 1: Write the proportion equation
   72.75 : 110.63 = 110.63 : x
2. Step 2: Convert to fraction form
   72.75/110.63 = 110.63/x
3. Step 3: Cross multiply
   72.75x = 110.63 × 110.63
4. Step 4: Simplify right side
   72.75x = 12,237.89
5. Step 5: Solve for x
   x = 12,237.89/72.75
6. Step 6: Final answer
   x = 168.22