Finding the Third Proportional to 229,640 and 486,616

Step by Step Solution

1. Step 1: Write the proportion equation
   229,640 : 486,616 = 486,616 : x
2. Step 2: Convert to fraction form
   229,640/486,616 = 486,616/x
3. Step 3: Cross multiply
   229,640x = 486,616 × 486,616
4. Step 4: Simplify right side
   229,640x = 236,795,131,456
5. Step 5: Solve for x
   x = 236,795,131,456/229,640
6. Step 6: Final answer
   x = 1,031,158.04