Finding the Third Proportional to 3,107,448 and 4,198,428

Step by Step Solution

1. Step 1: Write the proportion equation
   3,107,448 : 4,198,428 = 4,198,428 : x
2. Step 2: Convert to fraction form
   3,107,448/4,198,428 = 4,198,428/x
3. Step 3: Cross multiply
   3,107,448x = 4,198,428 × 4,198,428
4. Step 4: Simplify right side
   3,107,448x = 17,626,797,671,184
5. Step 5: Solve for x
   x = 17,626,797,671,184/3,107,448
6. Step 6: Final answer
   x = 5,672,435.28