Finding the Third Proportional to 228,518 and 492,116

Step by Step Solution

1. Step 1: Write the proportion equation
   228,518 : 492,116 = 492,116 : x
2. Step 2: Convert to fraction form
   228,518/492,116 = 492,116/x
3. Step 3: Cross multiply
   228,518x = 492,116 × 492,116
4. Step 4: Simplify right side
   228,518x = 242,178,157,456
5. Step 5: Solve for x
   x = 242,178,157,456/228,518
6. Step 6: Final answer
   x = 1,059,777.16