Finding the Third Proportional to 1,220,508 and 1,839,672

Step by Step Solution

1. Step 1: Write the proportion equation
   1,220,508 : 1,839,672 = 1,839,672 : x
2. Step 2: Convert to fraction form
   1,220,508/1,839,672 = 1,839,672/x
3. Step 3: Cross multiply
   1,220,508x = 1,839,672 × 1,839,672
4. Step 4: Simplify right side
   1,220,508x = 3,384,393,067,584
5. Step 5: Solve for x
   x = 3,384,393,067,584/1,220,508
6. Step 6: Final answer
   x = 2,772,938.05