Finding the Third Proportional to 229,638 and 486,612

Step by Step Solution

1. Step 1: Write the proportion equation
   229,638 : 486,612 = 486,612 : x
2. Step 2: Convert to fraction form
   229,638/486,612 = 486,612/x
3. Step 3: Cross multiply
   229,638x = 486,612 × 486,612
4. Step 4: Simplify right side
   229,638x = 236,791,238,544
5. Step 5: Solve for x
   x = 236,791,238,544/229,638
6. Step 6: Final answer
   x = 1,031,150.06