Finding the Third Proportional to 1,223,834 and 1,720,384

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223,834 : 1,720,384 = 1,720,384 : x
2. Step 2: Convert to fraction form
   1,223,834/1,720,384 = 1,720,384/x
3. Step 3: Cross multiply
   1,223,834x = 1,720,384 × 1,720,384
4. Step 4: Simplify right side
   1,223,834x = 2,959,721,107,456
5. Step 5: Solve for x
   x = 2,959,721,107,456/1,223,834
6. Step 6: Final answer
   x = 2,418,400.79