Finding the Third Proportional to 229,620 and 486,556

Step by Step Solution

1. Step 1: Write the proportion equation
   229,620 : 486,556 = 486,556 : x
2. Step 2: Convert to fraction form
   229,620/486,556 = 486,556/x
3. Step 3: Cross multiply
   229,620x = 486,556 × 486,556
4. Step 4: Simplify right side
   229,620x = 236,736,741,136
5. Step 5: Solve for x
   x = 236,736,741,136/229,620
6. Step 6: Final answer
   x = 1,030,993.56