Finding the Third Proportional to 5,634,549 and 8,418,653

Step by Step Solution

1. Step 1: Write the proportion equation
   5,634,549 : 8,418,653 = 8,418,653 : x
2. Step 2: Convert to fraction form
   5,634,549/8,418,653 = 8,418,653/x
3. Step 3: Cross multiply
   5,634,549x = 8,418,653 × 8,418,653
4. Step 4: Simplify right side
   5,634,549x = 70,873,718,334,409
5. Step 5: Solve for x
   x = 70,873,718,334,409/5,634,549
6. Step 6: Final answer
   x = 12,578,419.02