Finding the Third Proportional to 1,029,790 and 2,153,689

Step by Step Solution

1. Step 1: Write the proportion equation
   1,029,790 : 2,153,689 = 2,153,689 : x
2. Step 2: Convert to fraction form
   1,029,790/2,153,689 = 2,153,689/x
3. Step 3: Cross multiply
   1,029,790x = 2,153,689 × 2,153,689
4. Step 4: Simplify right side
   1,029,790x = 4,638,376,308,721
5. Step 5: Solve for x
   x = 4,638,376,308,721/1,029,790
6. Step 6: Final answer
   x = 4,504,196.30