Finding the Third Proportional to 269,424 and 404,136

Step by Step Solution

1. Step 1: Write the proportion equation
   269,424 : 404,136 = 404,136 : x
2. Step 2: Convert to fraction form
   269,424/404,136 = 404,136/x
3. Step 3: Cross multiply
   269,424x = 404,136 × 404,136
4. Step 4: Simplify right side
   269,424x = 163,325,906,496
5. Step 5: Solve for x
   x = 163,325,906,496/269,424
6. Step 6: Final answer
   x = 606,204