Finding the Third Proportional to 916,836 and 1,401,612

Step by Step Solution

1. Step 1: Write the proportion equation
   916,836 : 1,401,612 = 1,401,612 : x
2. Step 2: Convert to fraction form
   916,836/1,401,612 = 1,401,612/x
3. Step 3: Cross multiply
   916,836x = 1,401,612 × 1,401,612
4. Step 4: Simplify right side
   916,836x = 1,964,516,198,544
5. Step 5: Solve for x
   x = 1,964,516,198,544/916,836
6. Step 6: Final answer
   x = 2,142,712.76