Finding the Third Proportional to 436.69 and 908.81

Step by Step Solution

1. Step 1: Write the proportion equation
   436.69 : 908.81 = 908.81 : x
2. Step 2: Convert to fraction form
   436.69/908.81 = 908.81/x
3. Step 3: Cross multiply
   436.69x = 908.81 × 908.81
4. Step 4: Simplify right side
   436.69x = 825,940.16
5. Step 5: Solve for x
   x = 825,940.16/436.69
6. Step 6: Final answer
   x = 1,891.38