Finding the Third Proportional to 2,388,680 and 5,197,256

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388,680 : 5,197,256 = 5,197,256 : x
2. Step 2: Convert to fraction form
   2,388,680/5,197,256 = 5,197,256/x
3. Step 3: Cross multiply
   2,388,680x = 5,197,256 × 5,197,256
4. Step 4: Simplify right side
   2,388,680x = 27,011,469,929,536
5. Step 5: Solve for x
   x = 27,011,469,929,536/2,388,680
6. Step 6: Final answer
   x = 11,308,115.75