Finding the Third Proportional to 158.02 and 323.86

Step by Step Solution

1. Step 1: Write the proportion equation
   158.02 : 323.86 = 323.86 : x
2. Step 2: Convert to fraction form
   158.02/323.86 = 323.86/x
3. Step 3: Cross multiply
   158.02x = 323.86 × 323.86
4. Step 4: Simplify right side
   158.02x = 104,884.89
5. Step 5: Solve for x
   x = 104,884.89/158.02
6. Step 6: Final answer
   x = 663.76