Finding the Third Proportional to 1,039,120 and 2,159,876

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,120 : 2,159,876 = 2,159,876 : x
2. Step 2: Convert to fraction form
   1,039,120/2,159,876 = 2,159,876/x
3. Step 3: Cross multiply
   1,039,120x = 2,159,876 × 2,159,876
4. Step 4: Simplify right side
   1,039,120x = 4,665,064,335,376
5. Step 5: Solve for x
   x = 4,665,064,335,376/1,039,120
6. Step 6: Final answer
   x = 4,489,437.54