Finding the Third Proportional to 554,808 and 835,404

Step by Step Solution

1. Step 1: Write the proportion equation
   554,808 : 835,404 = 835,404 : x
2. Step 2: Convert to fraction form
   554,808/835,404 = 835,404/x
3. Step 3: Cross multiply
   554,808x = 835,404 × 835,404
4. Step 4: Simplify right side
   554,808x = 697,899,843,216
5. Step 5: Solve for x
   x = 697,899,843,216/554,808
6. Step 6: Final answer
   x = 1,257,912.36