Finding the Third Proportional to 3,663,739 and 7,831,673

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663,739 : 7,831,673 = 7,831,673 : x
2. Step 2: Convert to fraction form
   3,663,739/7,831,673 = 7,831,673/x
3. Step 3: Cross multiply
   3,663,739x = 7,831,673 × 7,831,673
4. Step 4: Simplify right side
   3,663,739x = 61,335,101,978,929
5. Step 5: Solve for x
   x = 61,335,101,978,929/3,663,739
6. Step 6: Final answer
   x = 16,741,122.11