Finding the Third Proportional to 33.50 and 51.25

Step by Step Solution

1. Step 1: Write the proportion equation
   33.50 : 51.25 = 51.25 : x
2. Step 2: Convert to fraction form
   33.50/51.25 = 51.25/x
3. Step 3: Cross multiply
   33.50x = 51.25 × 51.25
4. Step 4: Simplify right side
   33.50x = 2,626.56
5. Step 5: Solve for x
   x = 2,626.56/33.50
6. Step 6: Final answer
   x = 78.40