Finding the Third Proportional to 3,144,821 and 6,878,499

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144,821 : 6,878,499 = 6,878,499 : x
2. Step 2: Convert to fraction form
   3,144,821/6,878,499 = 6,878,499/x
3. Step 3: Cross multiply
   3,144,821x = 6,878,499 × 6,878,499
4. Step 4: Simplify right side
   3,144,821x = 47,313,748,493,001
5. Step 5: Solve for x
   x = 47,313,748,493,001/3,144,821
6. Step 6: Final answer
   x = 15,044,973.46