Finding the Third Proportional to 1,243,593 and 1,920,348

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,593 : 1,920,348 = 1,920,348 : x
2. Step 2: Convert to fraction form
   1,243,593/1,920,348 = 1,920,348/x
3. Step 3: Cross multiply
   1,243,593x = 1,920,348 × 1,920,348
4. Step 4: Simplify right side
   1,243,593x = 3,687,736,441,104
5. Step 5: Solve for x
   x = 3,687,736,441,104/1,243,593
6. Step 6: Final answer
   x = 2,965,388.55