Finding the Third Proportional to 108,490 and 228,644

Step by Step Solution

1. Step 1: Write the proportion equation
   108,490 : 228,644 = 228,644 : x
2. Step 2: Convert to fraction form
   108,490/228,644 = 228,644/x
3. Step 3: Cross multiply
   108,490x = 228,644 × 228,644
4. Step 4: Simplify right side
   108,490x = 52,278,078,736
5. Step 5: Solve for x
   x = 52,278,078,736/108,490
6. Step 6: Final answer
   x = 481,870.02