Finding the Third Proportional to 268,168 and 554,892

Step by Step Solution

1. Step 1: Write the proportion equation
   268,168 : 554,892 = 554,892 : x
2. Step 2: Convert to fraction form
   268,168/554,892 = 554,892/x
3. Step 3: Cross multiply
   268,168x = 554,892 × 554,892
4. Step 4: Simplify right side
   268,168x = 307,905,131,664
5. Step 5: Solve for x
   x = 307,905,131,664/268,168
6. Step 6: Final answer
   x = 1,148,179.99