Finding the Third Proportional to 156.38 and 331.03

Step by Step Solution

1. Step 1: Write the proportion equation
   156.38 : 331.03 = 331.03 : x
2. Step 2: Convert to fraction form
   156.38/331.03 = 331.03/x
3. Step 3: Cross multiply
   156.38x = 331.03 × 331.03
4. Step 4: Simplify right side
   156.38x = 109,581.69
5. Step 5: Solve for x
   x = 109,581.69/156.38
6. Step 6: Final answer
   x = 700.76