Finding the Third Proportional to 618,993 and 1,356,087

Step by Step Solution

1. Step 1: Write the proportion equation
   618,993 : 1,356,087 = 1,356,087 : x
2. Step 2: Convert to fraction form
   618,993/1,356,087 = 1,356,087/x
3. Step 3: Cross multiply
   618,993x = 1,356,087 × 1,356,087
4. Step 4: Simplify right side
   618,993x = 1,838,971,951,569
5. Step 5: Solve for x
   x = 1,838,971,951,569/618,993
6. Step 6: Final answer
   x = 2,970,909.12