Finding the Third Proportional to 404,759 and 603,858

Step by Step Solution

1. Step 1: Write the proportion equation
   404,759 : 603,858 = 603,858 : x
2. Step 2: Convert to fraction form
   404,759/603,858 = 603,858/x
3. Step 3: Cross multiply
   404,759x = 603,858 × 603,858
4. Step 4: Simplify right side
   404,759x = 364,644,484,164
5. Step 5: Solve for x
   x = 364,644,484,164/404,759
6. Step 6: Final answer
   x = 900,892.84