Finding the Third Proportional to 856,442 and 1,844,428

Step by Step Solution

1. Step 1: Write the proportion equation
   856,442 : 1,844,428 = 1,844,428 : x
2. Step 2: Convert to fraction form
   856,442/1,844,428 = 1,844,428/x
3. Step 3: Cross multiply
   856,442x = 1,844,428 × 1,844,428
4. Step 4: Simplify right side
   856,442x = 3,401,914,647,184
5. Step 5: Solve for x
   x = 3,401,914,647,184/856,442
6. Step 6: Final answer
   x = 3,972,148.31