Finding the Third Proportional to 404,800 and 603,912

Step by Step Solution

1. Step 1: Write the proportion equation
   404,800 : 603,912 = 603,912 : x
2. Step 2: Convert to fraction form
   404,800/603,912 = 603,912/x
3. Step 3: Cross multiply
   404,800x = 603,912 × 603,912
4. Step 4: Simplify right side
   404,800x = 364,709,703,744
5. Step 5: Solve for x
   x = 364,709,703,744/404,800
6. Step 6: Final answer
   x = 900,962.71