Finding the Third Proportional to 1,290,834 and 2,799,396

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290,834 : 2,799,396 = 2,799,396 : x
2. Step 2: Convert to fraction form
   1,290,834/2,799,396 = 2,799,396/x
3. Step 3: Cross multiply
   1,290,834x = 2,799,396 × 2,799,396
4. Step 4: Simplify right side
   1,290,834x = 7,836,617,964,816
5. Step 5: Solve for x
   x = 7,836,617,964,816/1,290,834
6. Step 6: Final answer
   x = 6,070,972.69