Finding the Third Proportional to 3,692,668 and 7,678,880

Step by Step Solution

1. Step 1: Write the proportion equation
   3,692,668 : 7,678,880 = 7,678,880 : x
2. Step 2: Convert to fraction form
   3,692,668/7,678,880 = 7,678,880/x
3. Step 3: Cross multiply
   3,692,668x = 7,678,880 × 7,678,880
4. Step 4: Simplify right side
   3,692,668x = 58,965,198,054,400
5. Step 5: Solve for x
   x = 58,965,198,054,400/3,692,668
6. Step 6: Final answer
   x = 15,968,182.91