Finding the Third Proportional to 6,387,871 and 13,853,843

Step by Step Solution

1. Step 1: Write the proportion equation
   6,387,871 : 13,853,843 = 13,853,843 : x
2. Step 2: Convert to fraction form
   6,387,871/13,853,843 = 13,853,843/x
3. Step 3: Cross multiply
   6,387,871x = 13,853,843 × 13,853,843
4. Step 4: Simplify right side
   6,387,871x = 191,928,965,868,649
5. Step 5: Solve for x
   x = 191,928,965,868,649/6,387,871
6. Step 6: Final answer
   x = 30,045,842.48