Finding the Third Proportional to 105,277 and 228,290

Step by Step Solution

1. Step 1: Write the proportion equation
   105,277 : 228,290 = 228,290 : x
2. Step 2: Convert to fraction form
   105,277/228,290 = 228,290/x
3. Step 3: Cross multiply
   105,277x = 228,290 × 228,290
4. Step 4: Simplify right side
   105,277x = 52,116,324,100
5. Step 5: Solve for x
   x = 52,116,324,100/105,277
6. Step 6: Final answer
   x = 495,039.98