Finding the Third Proportional to 6,388,842 and 13,855,631

Step by Step Solution

1. Step 1: Write the proportion equation
   6,388,842 : 13,855,631 = 13,855,631 : x
2. Step 2: Convert to fraction form
   6,388,842/13,855,631 = 13,855,631/x
3. Step 3: Cross multiply
   6,388,842x = 13,855,631 × 13,855,631
4. Step 4: Simplify right side
   6,388,842x = 191,978,510,408,161
5. Step 5: Solve for x
   x = 191,978,510,408,161/6,388,842
6. Step 6: Final answer
   x = 30,049,030.86