Finding the Third Proportional to 665.72 and 933.47

Step by Step Solution

1. Step 1: Write the proportion equation
   665.72 : 933.47 = 933.47 : x
2. Step 2: Convert to fraction form
   665.72/933.47 = 933.47/x
3. Step 3: Cross multiply
   665.72x = 933.47 × 933.47
4. Step 4: Simplify right side
   665.72x = 871,363.91
5. Step 5: Solve for x
   x = 871,363.91/665.72
6. Step 6: Final answer
   x = 1,308.91