Finding the Third Proportional to 3,941,058 and 8,489,859

Step by Step Solution

1. Step 1: Write the proportion equation
   3,941,058 : 8,489,859 = 8,489,859 : x
2. Step 2: Convert to fraction form
   3,941,058/8,489,859 = 8,489,859/x
3. Step 3: Cross multiply
   3,941,058x = 8,489,859 × 8,489,859
4. Step 4: Simplify right side
   3,941,058x = 72,077,705,839,881
5. Step 5: Solve for x
   x = 72,077,705,839,881/3,941,058
6. Step 6: Final answer
   x = 18,288,922.88