Finding the Third Proportional to 59.25 and 85.17

Step by Step Solution

1. Step 1: Write the proportion equation
   59.25 : 85.17 = 85.17 : x
2. Step 2: Convert to fraction form
   59.25/85.17 = 85.17/x
3. Step 3: Cross multiply
   59.25x = 85.17 × 85.17
4. Step 4: Simplify right side
   59.25x = 7,254.07
5. Step 5: Solve for x
   x = 7,254.07/59.25
6. Step 6: Final answer
   x = 122.43