Finding the Third Proportional to 3,986,374 and 8,504,252

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986,374 : 8,504,252 = 8,504,252 : x
2. Step 2: Convert to fraction form
   3,986,374/8,504,252 = 8,504,252/x
3. Step 3: Cross multiply
   3,986,374x = 8,504,252 × 8,504,252
4. Step 4: Simplify right side
   3,986,374x = 72,322,302,079,504
5. Step 5: Solve for x
   x = 72,322,302,079,504/3,986,374
6. Step 6: Final answer
   x = 18,142,377.53