Finding the Third Proportional to 3,564,648 and 7,697,478

Step by Step Solution

1. Step 1: Write the proportion equation
   3,564,648 : 7,697,478 = 7,697,478 : x
2. Step 2: Convert to fraction form
   3,564,648/7,697,478 = 7,697,478/x
3. Step 3: Cross multiply
   3,564,648x = 7,697,478 × 7,697,478
4. Step 4: Simplify right side
   3,564,648x = 59,251,167,560,484
5. Step 5: Solve for x
   x = 59,251,167,560,484/3,564,648
6. Step 6: Final answer
   x = 16,621,884.56