Finding the Third Proportional to 404,870 and 859,556

Step by Step Solution

1. Step 1: Write the proportion equation
   404,870 : 859,556 = 859,556 : x
2. Step 2: Convert to fraction form
   404,870/859,556 = 859,556/x
3. Step 3: Cross multiply
   404,870x = 859,556 × 859,556
4. Step 4: Simplify right side
   404,870x = 738,836,517,136
5. Step 5: Solve for x
   x = 738,836,517,136/404,870
6. Step 6: Final answer
   x = 1,824,873.46