Finding the Third Proportional to 3,675,420 and 7,787,256

Step by Step Solution

1. Step 1: Write the proportion equation
   3,675,420 : 7,787,256 = 7,787,256 : x
2. Step 2: Convert to fraction form
   3,675,420/7,787,256 = 7,787,256/x
3. Step 3: Cross multiply
   3,675,420x = 7,787,256 × 7,787,256
4. Step 4: Simplify right side
   3,675,420x = 60,641,356,009,536
5. Step 5: Solve for x
   x = 60,641,356,009,536/3,675,420
6. Step 6: Final answer
   x = 16,499,163.64