Finding the Third Proportional to 19.86 and 41.93

Step by Step Solution

1. Step 1: Write the proportion equation
   19.86 : 41.93 = 41.93 : x
2. Step 2: Convert to fraction form
   19.86/41.93 = 41.93/x
3. Step 3: Cross multiply
   19.86x = 41.93 × 41.93
4. Step 4: Simplify right side
   19.86x = 1,758.52
5. Step 5: Solve for x
   x = 1,758.52/19.86
6. Step 6: Final answer
   x = 88.53