Finding the Third Proportional to 2,858,992 and 4,422,840

Step by Step Solution

1. Step 1: Write the proportion equation
   2,858,992 : 4,422,840 = 4,422,840 : x
2. Step 2: Convert to fraction form
   2,858,992/4,422,840 = 4,422,840/x
3. Step 3: Cross multiply
   2,858,992x = 4,422,840 × 4,422,840
4. Step 4: Simplify right side
   2,858,992x = 19,561,513,665,600
5. Step 5: Solve for x
   x = 19,561,513,665,600/2,858,992
6. Step 6: Final answer
   x = 6,842,101.57