Finding the Third Proportional to 1,212,252 and 1,818,378

Step by Step Solution

1. Step 1: Write the proportion equation
   1,212,252 : 1,818,378 = 1,818,378 : x
2. Step 2: Convert to fraction form
   1,212,252/1,818,378 = 1,818,378/x
3. Step 3: Cross multiply
   1,212,252x = 1,818,378 × 1,818,378
4. Step 4: Simplify right side
   1,212,252x = 3,306,498,550,884
5. Step 5: Solve for x
   x = 3,306,498,550,884/1,212,252
6. Step 6: Final answer
   x = 2,727,567