Finding the Third Proportional to 4,008,306 and 8,410,488

Step by Step Solution

1. Step 1: Write the proportion equation
   4,008,306 : 8,410,488 = 8,410,488 : x
2. Step 2: Convert to fraction form
   4,008,306/8,410,488 = 8,410,488/x
3. Step 3: Cross multiply
   4,008,306x = 8,410,488 × 8,410,488
4. Step 4: Simplify right side
   4,008,306x = 70,736,308,398,144
5. Step 5: Solve for x
   x = 70,736,308,398,144/4,008,306
6. Step 6: Final answer
   x = 17,647,432.21