Finding the Third Proportional to 3,922,008 and 8,538,510

Step by Step Solution

1. Step 1: Write the proportion equation
   3,922,008 : 8,538,510 = 8,538,510 : x
2. Step 2: Convert to fraction form
   3,922,008/8,538,510 = 8,538,510/x
3. Step 3: Cross multiply
   3,922,008x = 8,538,510 × 8,538,510
4. Step 4: Simplify right side
   3,922,008x = 72,906,153,020,100
5. Step 5: Solve for x
   x = 72,906,153,020,100/3,922,008
6. Step 6: Final answer
   x = 18,588,986.31