Finding the Third Proportional to 65.50 and 88.28

Step by Step Solution

1. Step 1: Write the proportion equation
   65.50 : 88.28 = 88.28 : x
2. Step 2: Convert to fraction form
   65.50/88.28 = 88.28/x
3. Step 3: Cross multiply
   65.50x = 88.28 × 88.28
4. Step 4: Simplify right side
   65.50x = 7,792.89
5. Step 5: Solve for x
   x = 7,792.89/65.50
6. Step 6: Final answer
   x = 118.98