Finding the Third Proportional to 505,362 and 1,105,678

Step by Step Solution

1. Step 1: Write the proportion equation
   505,362 : 1,105,678 = 1,105,678 : x
2. Step 2: Convert to fraction form
   505,362/1,105,678 = 1,105,678/x
3. Step 3: Cross multiply
   505,362x = 1,105,678 × 1,105,678
4. Step 4: Simplify right side
   505,362x = 1,222,523,839,684
5. Step 5: Solve for x
   x = 1,222,523,839,684/505,362
6. Step 6: Final answer
   x = 2,419,105.20