Finding the Third Proportional to 1,198,800 and 2,508,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,198,800 : 2,508,420 = 2,508,420 : x
2. Step 2: Convert to fraction form
   1,198,800/2,508,420 = 2,508,420/x
3. Step 3: Cross multiply
   1,198,800x = 2,508,420 × 2,508,420
4. Step 4: Simplify right side
   1,198,800x = 6,292,170,896,400
5. Step 5: Solve for x
   x = 6,292,170,896,400/1,198,800
6. Step 6: Final answer
   x = 5,248,724.47