Finding the Third Proportional to 1,289,258 and 2,792,788

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289,258 : 2,792,788 = 2,792,788 : x
2. Step 2: Convert to fraction form
   1,289,258/2,792,788 = 2,792,788/x
3. Step 3: Cross multiply
   1,289,258x = 2,792,788 × 2,792,788
4. Step 4: Simplify right side
   1,289,258x = 7,799,664,812,944
5. Step 5: Solve for x
   x = 7,799,664,812,944/1,289,258
6. Step 6: Final answer
   x = 6,049,731.56