Finding the Third Proportional to 42.67 and 64.37

Step by Step Solution

1. Step 1: Write the proportion equation
   42.67 : 64.37 = 64.37 : x
2. Step 2: Convert to fraction form
   42.67/64.37 = 64.37/x
3. Step 3: Cross multiply
   42.67x = 64.37 × 64.37
4. Step 4: Simplify right side
   42.67x = 4,143.64
5. Step 5: Solve for x
   x = 4,143.64/42.67
6. Step 6: Final answer
   x = 97.11