Finding the Third Proportional to 225,342 and 479,412

Step by Step Solution

1. Step 1: Write the proportion equation
   225,342 : 479,412 = 479,412 : x
2. Step 2: Convert to fraction form
   225,342/479,412 = 479,412/x
3. Step 3: Cross multiply
   225,342x = 479,412 × 479,412
4. Step 4: Simplify right side
   225,342x = 229,835,865,744
5. Step 5: Solve for x
   x = 229,835,865,744/225,342
6. Step 6: Final answer
   x = 1,019,942.42