Finding the Third Proportional to 916,238 and 1,398,049

Step by Step Solution

1. Step 1: Write the proportion equation
   916,238 : 1,398,049 = 1,398,049 : x
2. Step 2: Convert to fraction form
   916,238/1,398,049 = 1,398,049/x
3. Step 3: Cross multiply
   916,238x = 1,398,049 × 1,398,049
4. Step 4: Simplify right side
   916,238x = 1,954,541,006,401
5. Step 5: Solve for x
   x = 1,954,541,006,401/916,238
6. Step 6: Final answer
   x = 2,133,224.13