Finding the Third Proportional to 3,904,821 and 7,999,938

Step by Step Solution

1. Step 1: Write the proportion equation
   3,904,821 : 7,999,938 = 7,999,938 : x
2. Step 2: Convert to fraction form
   3,904,821/7,999,938 = 7,999,938/x
3. Step 3: Cross multiply
   3,904,821x = 7,999,938 × 7,999,938
4. Step 4: Simplify right side
   3,904,821x = 63,999,008,003,844
5. Step 5: Solve for x
   x = 63,999,008,003,844/3,904,821
6. Step 6: Final answer
   x = 16,389,741.81