Finding the Third Proportional to 840,168 and 1,275,786

Step by Step Solution

1. Step 1: Write the proportion equation
   840,168 : 1,275,786 = 1,275,786 : x
2. Step 2: Convert to fraction form
   840,168/1,275,786 = 1,275,786/x
3. Step 3: Cross multiply
   840,168x = 1,275,786 × 1,275,786
4. Step 4: Simplify right side
   840,168x = 1,627,629,917,796
5. Step 5: Solve for x
   x = 1,627,629,917,796/840,168
6. Step 6: Final answer
   x = 1,937,267.21