Finding the Third Proportional to 396.14 and 908.72

Step by Step Solution

1. Step 1: Write the proportion equation
   396.14 : 908.72 = 908.72 : x
2. Step 2: Convert to fraction form
   396.14/908.72 = 908.72/x
3. Step 3: Cross multiply
   396.14x = 908.72 × 908.72
4. Step 4: Simplify right side
   396.14x = 825,769.77
5. Step 5: Solve for x
   x = 825,769.77/396.14
6. Step 6: Final answer
   x = 2,084.54