Finding the Third Proportional to 40.22 and 58.45

Step by Step Solution

1. Step 1: Write the proportion equation
   40.22 : 58.45 = 58.45 : x
2. Step 2: Convert to fraction form
   40.22/58.45 = 58.45/x
3. Step 3: Cross multiply
   40.22x = 58.45 × 58.45
4. Step 4: Simplify right side
   40.22x = 3,416.77
5. Step 5: Solve for x
   x = 3,416.77/40.22
6. Step 6: Final answer
   x = 84.95