Finding the Third Proportional to 858,401 and 1,358,936

Step by Step Solution

1. Step 1: Write the proportion equation
   858,401 : 1,358,936 = 1,358,936 : x
2. Step 2: Convert to fraction form
   858,401/1,358,936 = 1,358,936/x
3. Step 3: Cross multiply
   858,401x = 1,358,936 × 1,358,936
4. Step 4: Simplify right side
   858,401x = 1,846,707,052,096
5. Step 5: Solve for x
   x = 1,846,707,052,096/858,401
6. Step 6: Final answer
   x = 2,151,333.76