Finding the Third Proportional to 1,287,899 and 2,797,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,899 : 2,797,216 = 2,797,216 : x
2. Step 2: Convert to fraction form
   1,287,899/2,797,216 = 2,797,216/x
3. Step 3: Cross multiply
   1,287,899x = 2,797,216 × 2,797,216
4. Step 4: Simplify right side
   1,287,899x = 7,824,417,350,656
5. Step 5: Solve for x
   x = 7,824,417,350,656/1,287,899
6. Step 6: Final answer
   x = 6,075,334.60