Finding the Third Proportional to 1,212,244 and 1,818,366

Step by Step Solution

1. Step 1: Write the proportion equation
   1,212,244 : 1,818,366 = 1,818,366 : x
2. Step 2: Convert to fraction form
   1,212,244/1,818,366 = 1,818,366/x
3. Step 3: Cross multiply
   1,212,244x = 1,818,366 × 1,818,366
4. Step 4: Simplify right side
   1,212,244x = 3,306,454,909,956
5. Step 5: Solve for x
   x = 3,306,454,909,956/1,212,244
6. Step 6: Final answer
   x = 2,727,549