Finding the Third Proportional to 3,839,411 and 8,264,128

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839,411 : 8,264,128 = 8,264,128 : x
2. Step 2: Convert to fraction form
   3,839,411/8,264,128 = 8,264,128/x
3. Step 3: Cross multiply
   3,839,411x = 8,264,128 × 8,264,128
4. Step 4: Simplify right side
   3,839,411x = 68,295,811,600,384
5. Step 5: Solve for x
   x = 68,295,811,600,384/3,839,411
6. Step 6: Final answer
   x = 17,788,096.04