Finding the Third Proportional to 404,195 and 673,685

Step by Step Solution

1. Step 1: Write the proportion equation
   404,195 : 673,685 = 673,685 : x
2. Step 2: Convert to fraction form
   404,195/673,685 = 673,685/x
3. Step 3: Cross multiply
   404,195x = 673,685 × 673,685
4. Step 4: Simplify right side
   404,195x = 453,851,479,225
5. Step 5: Solve for x
   x = 453,851,479,225/404,195
6. Step 6: Final answer
   x = 1,122,852.78