Finding the Third Proportional to 3,864,798 and 8,395,539

Step by Step Solution

1. Step 1: Write the proportion equation
   3,864,798 : 8,395,539 = 8,395,539 : x
2. Step 2: Convert to fraction form
   3,864,798/8,395,539 = 8,395,539/x
3. Step 3: Cross multiply
   3,864,798x = 8,395,539 × 8,395,539
4. Step 4: Simplify right side
   3,864,798x = 70,485,075,100,521
5. Step 5: Solve for x
   x = 70,485,075,100,521/3,864,798
6. Step 6: Final answer
   x = 18,237,712.58