Finding the Third Proportional to 225,544 and 489,964

Step by Step Solution

1. Step 1: Write the proportion equation
   225,544 : 489,964 = 489,964 : x
2. Step 2: Convert to fraction form
   225,544/489,964 = 489,964/x
3. Step 3: Cross multiply
   225,544x = 489,964 × 489,964
4. Step 4: Simplify right side
   225,544x = 240,064,721,296
5. Step 5: Solve for x
   x = 240,064,721,296/225,544
6. Step 6: Final answer
   x = 1,064,380.88