Finding the Third Proportional to 42.69 and 65.92

Step by Step Solution

1. Step 1: Write the proportion equation
   42.69 : 65.92 = 65.92 : x
2. Step 2: Convert to fraction form
   42.69/65.92 = 65.92/x
3. Step 3: Cross multiply
   42.69x = 65.92 × 65.92
4. Step 4: Simplify right side
   42.69x = 4,345.29
5. Step 5: Solve for x
   x = 4,345.29/42.69
6. Step 6: Final answer
   x = 101.80