Finding the Third Proportional to 229,408 and 492,040

Step by Step Solution

1. Step 1: Write the proportion equation
   229,408 : 492,040 = 492,040 : x
2. Step 2: Convert to fraction form
   229,408/492,040 = 492,040/x
3. Step 3: Cross multiply
   229,408x = 492,040 × 492,040
4. Step 4: Simplify right side
   229,408x = 242,103,361,600
5. Step 5: Solve for x
   x = 242,103,361,600/229,408
6. Step 6: Final answer
   x = 1,055,339.66