Finding the Third Proportional to 59.91 and 79.59

Step by Step Solution

1. Step 1: Write the proportion equation
   59.91 : 79.59 = 79.59 : x
2. Step 2: Convert to fraction form
   59.91/79.59 = 79.59/x
3. Step 3: Cross multiply
   59.91x = 79.59 × 79.59
4. Step 4: Simplify right side
   59.91x = 6,335.17
5. Step 5: Solve for x
   x = 6,335.17/59.91
6. Step 6: Final answer
   x = 105.75