Finding the Third Proportional to 1,270,857 and 1,981,311

Step by Step Solution

1. Step 1: Write the proportion equation
   1,270,857 : 1,981,311 = 1,981,311 : x
2. Step 2: Convert to fraction form
   1,270,857/1,981,311 = 1,981,311/x
3. Step 3: Cross multiply
   1,270,857x = 1,981,311 × 1,981,311
4. Step 4: Simplify right side
   1,270,857x = 3,925,593,278,721
5. Step 5: Solve for x
   x = 3,925,593,278,721/1,270,857
6. Step 6: Final answer
   x = 3,088,933.91