Finding the Third Proportional to 1,366,998 and 2,039,409

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366,998 : 2,039,409 = 2,039,409 : x
2. Step 2: Convert to fraction form
   1,366,998/2,039,409 = 2,039,409/x
3. Step 3: Cross multiply
   1,366,998x = 2,039,409 × 2,039,409
4. Step 4: Simplify right side
   1,366,998x = 4,159,189,069,281
5. Step 5: Solve for x
   x = 4,159,189,069,281/1,366,998
6. Step 6: Final answer
   x = 3,042,571.44