Finding the Third Proportional to 3,659,913 and 7,949,859

Step by Step Solution

1. Step 1: Write the proportion equation
   3,659,913 : 7,949,859 = 7,949,859 : x
2. Step 2: Convert to fraction form
   3,659,913/7,949,859 = 7,949,859/x
3. Step 3: Cross multiply
   3,659,913x = 7,949,859 × 7,949,859
4. Step 4: Simplify right side
   3,659,913x = 63,200,258,119,881
5. Step 5: Solve for x
   x = 63,200,258,119,881/3,659,913
6. Step 6: Final answer
   x = 17,268,240.56