Finding the Third Proportional to 2,100,640 and 3,150,256

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,640 : 3,150,256 = 3,150,256 : x
2. Step 2: Convert to fraction form
   2,100,640/3,150,256 = 3,150,256/x
3. Step 3: Cross multiply
   2,100,640x = 3,150,256 × 3,150,256
4. Step 4: Simplify right side
   2,100,640x = 9,924,112,865,536
5. Step 5: Solve for x
   x = 9,924,112,865,536/2,100,640
6. Step 6: Final answer
   x = 4,724,328.24