Finding the Third Proportional to 19.55 and 40.46

Step by Step Solution

1. Step 1: Write the proportion equation
   19.55 : 40.46 = 40.46 : x
2. Step 2: Convert to fraction form
   19.55/40.46 = 40.46/x
3. Step 3: Cross multiply
   19.55x = 40.46 × 40.46
4. Step 4: Simplify right side
   19.55x = 1,637.40
5. Step 5: Solve for x
   x = 1,637.40/19.55
6. Step 6: Final answer
   x = 83.77