Finding the Third Proportional to 1,382,278 and 2,163,707

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382,278 : 2,163,707 = 2,163,707 : x
2. Step 2: Convert to fraction form
   1,382,278/2,163,707 = 2,163,707/x
3. Step 3: Cross multiply
   1,382,278x = 2,163,707 × 2,163,707
4. Step 4: Simplify right side
   1,382,278x = 4,681,627,981,849
5. Step 5: Solve for x
   x = 4,681,627,981,849/1,382,278
6. Step 6: Final answer
   x = 3,386,893.22