Finding the Third Proportional to 1,209,866 and 1,857,098

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,866 : 1,857,098 = 1,857,098 : x
2. Step 2: Convert to fraction form
   1,209,866/1,857,098 = 1,857,098/x
3. Step 3: Cross multiply
   1,209,866x = 1,857,098 × 1,857,098
4. Step 4: Simplify right side
   1,209,866x = 3,448,812,981,604
5. Step 5: Solve for x
   x = 3,448,812,981,604/1,209,866
6. Step 6: Final answer
   x = 2,850,574.35