Finding the Third Proportional to 162.47 and 213.28

Step by Step Solution

1. Step 1: Write the proportion equation
   162.47 : 213.28 = 213.28 : x
2. Step 2: Convert to fraction form
   162.47/213.28 = 213.28/x
3. Step 3: Cross multiply
   162.47x = 213.28 × 213.28
4. Step 4: Simplify right side
   162.47x = 45,488.89
5. Step 5: Solve for x
   x = 45,488.89/162.47
6. Step 6: Final answer
   x = 279.99