Finding the Third Proportional to 50.75 and 76.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50.75 : 76.50 = 76.50 : x
2. Step 2: Convert to fraction form
   50.75/76.50 = 76.50/x
3. Step 3: Cross multiply
   50.75x = 76.50 × 76.50
4. Step 4: Simplify right side
   50.75x = 5,852.25
5. Step 5: Solve for x
   x = 5,852.25/50.75
6. Step 6: Final answer
   x = 115.32