Finding the Third Proportional to 1,200,366 and 1,813,401

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,366 : 1,813,401 = 1,813,401 : x
2. Step 2: Convert to fraction form
   1,200,366/1,813,401 = 1,813,401/x
3. Step 3: Cross multiply
   1,200,366x = 1,813,401 × 1,813,401
4. Step 4: Simplify right side
   1,200,366x = 3,288,423,186,801
5. Step 5: Solve for x
   x = 3,288,423,186,801/1,200,366
6. Step 6: Final answer
   x = 2,739,517.10