Finding the Third Proportional to 1,823,418 and 3,967,920

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823,418 : 3,967,920 = 3,967,920 : x
2. Step 2: Convert to fraction form
   1,823,418/3,967,920 = 3,967,920/x
3. Step 3: Cross multiply
   1,823,418x = 3,967,920 × 3,967,920
4. Step 4: Simplify right side
   1,823,418x = 15,744,389,126,400
5. Step 5: Solve for x
   x = 15,744,389,126,400/1,823,418
6. Step 6: Final answer
   x = 8,634,547.39