Finding the Third Proportional to 3,271,556 and 7,149,640

Step by Step Solution

1. Step 1: Write the proportion equation
   3,271,556 : 7,149,640 = 7,149,640 : x
2. Step 2: Convert to fraction form
   3,271,556/7,149,640 = 7,149,640/x
3. Step 3: Cross multiply
   3,271,556x = 7,149,640 × 7,149,640
4. Step 4: Simplify right side
   3,271,556x = 51,117,352,129,600
5. Step 5: Solve for x
   x = 51,117,352,129,600/3,271,556
6. Step 6: Final answer
   x = 15,624,782.86