Finding the Third Proportional to 472,404 and 486,012

Step by Step Solution

1. Step 1: Write the proportion equation
   472,404 : 486,012 = 486,012 : x
2. Step 2: Convert to fraction form
   472,404/486,012 = 486,012/x
3. Step 3: Cross multiply
   472,404x = 486,012 × 486,012
4. Step 4: Simplify right side
   472,404x = 236,207,664,144
5. Step 5: Solve for x
   x = 236,207,664,144/472,404
6. Step 6: Final answer
   x = 500,011.99