Finding the Third Proportional to 613,638 and 1,342,116

Step by Step Solution

1. Step 1: Write the proportion equation
   613,638 : 1,342,116 = 1,342,116 : x
2. Step 2: Convert to fraction form
   613,638/1,342,116 = 1,342,116/x
3. Step 3: Cross multiply
   613,638x = 1,342,116 × 1,342,116
4. Step 4: Simplify right side
   613,638x = 1,801,275,357,456
5. Step 5: Solve for x
   x = 1,801,275,357,456/613,638
6. Step 6: Final answer
   x = 2,935,403.87