Finding the Third Proportional to 3,118,720 and 4,665,384

Step by Step Solution

1. Step 1: Write the proportion equation
   3,118,720 : 4,665,384 = 4,665,384 : x
2. Step 2: Convert to fraction form
   3,118,720/4,665,384 = 4,665,384/x
3. Step 3: Cross multiply
   3,118,720x = 4,665,384 × 4,665,384
4. Step 4: Simplify right side
   3,118,720x = 21,765,807,867,456
5. Step 5: Solve for x
   x = 21,765,807,867,456/3,118,720
6. Step 6: Final answer
   x = 6,979,083.68