Finding the Third Proportional to 996,990 and 2,162,238

Step by Step Solution

1. Step 1: Write the proportion equation
   996,990 : 2,162,238 = 2,162,238 : x
2. Step 2: Convert to fraction form
   996,990/2,162,238 = 2,162,238/x
3. Step 3: Cross multiply
   996,990x = 2,162,238 × 2,162,238
4. Step 4: Simplify right side
   996,990x = 4,675,273,168,644
5. Step 5: Solve for x
   x = 4,675,273,168,644/996,990
6. Step 6: Final answer
   x = 4,689,388.23