Finding the Third Proportional to 2,128,074 and 4,629,396

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,074 : 4,629,396 = 4,629,396 : x
2. Step 2: Convert to fraction form
   2,128,074/4,629,396 = 4,629,396/x
3. Step 3: Cross multiply
   2,128,074x = 4,629,396 × 4,629,396
4. Step 4: Simplify right side
   2,128,074x = 21,431,307,324,816
5. Step 5: Solve for x
   x = 21,431,307,324,816/2,128,074
6. Step 6: Final answer
   x = 10,070,752.86