Finding the Third Proportional to 1,223,826 and 1,720,371

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,826 : 1,720,371 = 1,720,371 : x
2. Step 2: Convert to fraction form
   1,223,826/1,720,371 = 1,720,371/x
3. Step 3: Cross multiply
   1,223,826x = 1,720,371 × 1,720,371
4. Step 4: Simplify right side
   1,223,826x = 2,959,676,377,641
5. Step 5: Solve for x
   x = 2,959,676,377,641/1,223,826
6. Step 6: Final answer
   x = 2,418,380.05