Finding the Third Proportional to 47.50 and 61.25

Step by Step Solution

1. Step 1: Write the proportion equation
   47.50 : 61.25 = 61.25 : x
2. Step 2: Convert to fraction form
   47.50/61.25 = 61.25/x
3. Step 3: Cross multiply
   47.50x = 61.25 × 61.25
4. Step 4: Simplify right side
   47.50x = 3,751.56
5. Step 5: Solve for x
   x = 3,751.56/47.50
6. Step 6: Final answer
   x = 78.98