Finding the Third Proportional to 1,039,116 and 2,159,868

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,116 : 2,159,868 = 2,159,868 : x
2. Step 2: Convert to fraction form
   1,039,116/2,159,868 = 2,159,868/x
3. Step 3: Cross multiply
   1,039,116x = 2,159,868 × 2,159,868
4. Step 4: Simplify right side
   1,039,116x = 4,665,029,777,424
5. Step 5: Solve for x
   x = 4,665,029,777,424/1,039,116
6. Step 6: Final answer
   x = 4,489,421.56