Finding the Third Proportional to 59.91 and 92.72

Step by Step Solution

1. Step 1: Write the proportion equation
   59.91 : 92.72 = 92.72 : x
2. Step 2: Convert to fraction form
   59.91/92.72 = 92.72/x
3. Step 3: Cross multiply
   59.91x = 92.72 × 92.72
4. Step 4: Simplify right side
   59.91x = 8,596.77
5. Step 5: Solve for x
   x = 8,596.77/59.91
6. Step 6: Final answer
   x = 143.50