Finding the Third Proportional to 996,864 and 2,161,992

Step by Step Solution

1. Step 1: Write the proportion equation
   996,864 : 2,161,992 = 2,161,992 : x
2. Step 2: Convert to fraction form
   996,864/2,161,992 = 2,161,992/x
3. Step 3: Cross multiply
   996,864x = 2,161,992 × 2,161,992
4. Step 4: Simplify right side
   996,864x = 4,674,209,408,064
5. Step 5: Solve for x
   x = 4,674,209,408,064/996,864
6. Step 6: Final answer
   x = 4,688,913.84