Finding the Third Proportional to 3,986,370 and 8,504,244

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986,370 : 8,504,244 = 8,504,244 : x
2. Step 2: Convert to fraction form
   3,986,370/8,504,244 = 8,504,244/x
3. Step 3: Cross multiply
   3,986,370x = 8,504,244 × 8,504,244
4. Step 4: Simplify right side
   3,986,370x = 72,322,166,011,536
5. Step 5: Solve for x
   x = 72,322,166,011,536/3,986,370
6. Step 6: Final answer
   x = 18,142,361.60