Finding the Third Proportional to 1,839,712 and 4,021,424

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839,712 : 4,021,424 = 4,021,424 : x
2. Step 2: Convert to fraction form
   1,839,712/4,021,424 = 4,021,424/x
3. Step 3: Cross multiply
   1,839,712x = 4,021,424 × 4,021,424
4. Step 4: Simplify right side
   1,839,712x = 16,171,850,987,776
5. Step 5: Solve for x
   x = 16,171,850,987,776/1,839,712
6. Step 6: Final answer
   x = 8,790,425.34