Finding the Third Proportional to 1,038,578 and 2,159,712

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038,578 : 2,159,712 = 2,159,712 : x
2. Step 2: Convert to fraction form
   1,038,578/2,159,712 = 2,159,712/x
3. Step 3: Cross multiply
   1,038,578x = 2,159,712 × 2,159,712
4. Step 4: Simplify right side
   1,038,578x = 4,664,355,922,944
5. Step 5: Solve for x
   x = 4,664,355,922,944/1,038,578
6. Step 6: Final answer
   x = 4,491,098.33