Finding the Third Proportional to 223,452 and 486,216

Step by Step Solution

1. Step 1: Write the proportion equation
   223,452 : 486,216 = 486,216 : x
2. Step 2: Convert to fraction form
   223,452/486,216 = 486,216/x
3. Step 3: Cross multiply
   223,452x = 486,216 × 486,216
4. Step 4: Simplify right side
   223,452x = 236,405,998,656
5. Step 5: Solve for x
   x = 236,405,998,656/223,452
6. Step 6: Final answer
   x = 1,057,972.18