Finding the Third Proportional to 4,046,969 and 8,670,856

Step by Step Solution

1. Step 1: Write the proportion equation
   4,046,969 : 8,670,856 = 8,670,856 : x
2. Step 2: Convert to fraction form
   4,046,969/8,670,856 = 8,670,856/x
3. Step 3: Cross multiply
   4,046,969x = 8,670,856 × 8,670,856
4. Step 4: Simplify right side
   4,046,969x = 75,183,743,772,736
5. Step 5: Solve for x
   x = 75,183,743,772,736/4,046,969
6. Step 6: Final answer
   x = 18,577,790.88