Finding the Third Proportional to 194,790 and 404,556

Step by Step Solution

1. Step 1: Write the proportion equation
   194,790 : 404,556 = 404,556 : x
2. Step 2: Convert to fraction form
   194,790/404,556 = 404,556/x
3. Step 3: Cross multiply
   194,790x = 404,556 × 404,556
4. Step 4: Simplify right side
   194,790x = 163,665,557,136
5. Step 5: Solve for x
   x = 163,665,557,136/194,790
6. Step 6: Final answer
   x = 840,215.40