Finding the Third Proportional to 230,040 and 489,888

Step by Step Solution

1. Step 1: Write the proportion equation
   230,040 : 489,888 = 489,888 : x
2. Step 2: Convert to fraction form
   230,040/489,888 = 489,888/x
3. Step 3: Cross multiply
   230,040x = 489,888 × 489,888
4. Step 4: Simplify right side
   230,040x = 239,990,252,544
5. Step 5: Solve for x
   x = 239,990,252,544/230,040
6. Step 6: Final answer
   x = 1,043,254.45