Finding the Third Proportional to 3,687,072 and 7,668,448

Step by Step Solution

1. Step 1: Write the proportion equation
   3,687,072 : 7,668,448 = 7,668,448 : x
2. Step 2: Convert to fraction form
   3,687,072/7,668,448 = 7,668,448/x
3. Step 3: Cross multiply
   3,687,072x = 7,668,448 × 7,668,448
4. Step 4: Simplify right side
   3,687,072x = 58,805,094,728,704
5. Step 5: Solve for x
   x = 58,805,094,728,704/3,687,072
6. Step 6: Final answer
   x = 15,948,995.50