Finding the Third Proportional to 228,046 and 489,300

Step by Step Solution

1. Step 1: Write the proportion equation
   228,046 : 489,300 = 489,300 : x
2. Step 2: Convert to fraction form
   228,046/489,300 = 489,300/x
3. Step 3: Cross multiply
   228,046x = 489,300 × 489,300
4. Step 4: Simplify right side
   228,046x = 239,414,490,000
5. Step 5: Solve for x
   x = 239,414,490,000/228,046
6. Step 6: Final answer
   x = 1,049,851.74