Finding the Third Proportional to 19.41 and 41.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19.41 : 41.72 = 41.72 : x
2. Step 2: Convert to fraction form
   19.41/41.72 = 41.72/x
3. Step 3: Cross multiply
   19.41x = 41.72 × 41.72
4. Step 4: Simplify right side
   19.41x = 1,740.45
5. Step 5: Solve for x
   x = 1,740.45/19.41
6. Step 6: Final answer
   x = 89.69