Finding the Third Proportional to 262,530 and 404,019

Step by Step Solution

1. Step 1: Write the proportion equation
   262,530 : 404,019 = 404,019 : x
2. Step 2: Convert to fraction form
   262,530/404,019 = 404,019/x
3. Step 3: Cross multiply
   262,530x = 404,019 × 404,019
4. Step 4: Simplify right side
   262,530x = 163,231,352,361
5. Step 5: Solve for x
   x = 163,231,352,361/262,530
6. Step 6: Final answer
   x = 621,762.66