Finding the Third Proportional to 404,764 and 603,864

Step by Step Solution

1. Step 1: Write the proportion equation
   404,764 : 603,864 = 603,864 : x
2. Step 2: Convert to fraction form
   404,764/603,864 = 603,864/x
3. Step 3: Cross multiply
   404,764x = 603,864 × 603,864
4. Step 4: Simplify right side
   404,764x = 364,651,730,496
5. Step 5: Solve for x
   x = 364,651,730,496/404,764
6. Step 6: Final answer
   x = 900,899.61