Finding the Third Proportional to 28.27 and 43.45

Step by Step Solution

1. Step 1: Write the proportion equation
   28.27 : 43.45 = 43.45 : x
2. Step 2: Convert to fraction form
   28.27/43.45 = 43.45/x
3. Step 3: Cross multiply
   28.27x = 43.45 × 43.45
4. Step 4: Simplify right side
   28.27x = 1,888.17
5. Step 5: Solve for x
   x = 1,888.17/28.27
6. Step 6: Final answer
   x = 66.80