Finding the Third Proportional to 992,874 and 2,143,215

Step by Step Solution

1. Step 1: Write the proportion equation
   992,874 : 2,143,215 = 2,143,215 : x
2. Step 2: Convert to fraction form
   992,874/2,143,215 = 2,143,215/x
3. Step 3: Cross multiply
   992,874x = 2,143,215 × 2,143,215
4. Step 4: Simplify right side
   992,874x = 4,593,370,536,225
5. Step 5: Solve for x
   x = 4,593,370,536,225/992,874
6. Step 6: Final answer
   x = 4,626,337.82