Finding the Third Proportional to 3,956,838 and 8,527,980

Step by Step Solution

1. Step 1: Write the proportion equation
   3,956,838 : 8,527,980 = 8,527,980 : x
2. Step 2: Convert to fraction form
   3,956,838/8,527,980 = 8,527,980/x
3. Step 3: Cross multiply
   3,956,838x = 8,527,980 × 8,527,980
4. Step 4: Simplify right side
   3,956,838x = 72,726,442,880,400
5. Step 5: Solve for x
   x = 72,726,442,880,400/3,956,838
6. Step 6: Final answer
   x = 18,379,939.46