Finding the Third Proportional to 1,275,643 and 1,838,011

Step by Step Solution

1. Step 1: Write the proportion equation
   1,275,643 : 1,838,011 = 1,838,011 : x
2. Step 2: Convert to fraction form
   1,275,643/1,838,011 = 1,838,011/x
3. Step 3: Cross multiply
   1,275,643x = 1,838,011 × 1,838,011
4. Step 4: Simplify right side
   1,275,643x = 3,378,284,436,121
5. Step 5: Solve for x
   x = 3,378,284,436,121/1,275,643
6. Step 6: Final answer
   x = 2,648,299.28