Finding the Third Proportional to 45.75 and 64.73

Step by Step Solution

1. Step 1: Write the proportion equation
   45.75 : 64.73 = 64.73 : x
2. Step 2: Convert to fraction form
   45.75/64.73 = 64.73/x
3. Step 3: Cross multiply
   45.75x = 64.73 × 64.73
4. Step 4: Simplify right side
   45.75x = 4,190.54
5. Step 5: Solve for x
   x = 4,190.54/45.75
6. Step 6: Final answer
   x = 91.60