Finding the Third Proportional to 519,678 and 1,138,662

Step by Step Solution

1. Step 1: Write the proportion equation
   519,678 : 1,138,662 = 1,138,662 : x
2. Step 2: Convert to fraction form
   519,678/1,138,662 = 1,138,662/x
3. Step 3: Cross multiply
   519,678x = 1,138,662 × 1,138,662
4. Step 4: Simplify right side
   519,678x = 1,296,551,150,244
5. Step 5: Solve for x
   x = 1,296,551,150,244/519,678
6. Step 6: Final answer
   x = 2,494,912.52