Finding the Third Proportional to 2,600,589 and 3,450,705

Step by Step Solution

1. Step 1: Write the proportion equation
   2,600,589 : 3,450,705 = 3,450,705 : x
2. Step 2: Convert to fraction form
   2,600,589/3,450,705 = 3,450,705/x
3. Step 3: Cross multiply
   2,600,589x = 3,450,705 × 3,450,705
4. Step 4: Simplify right side
   2,600,589x = 11,907,364,997,025
5. Step 5: Solve for x
   x = 11,907,364,997,025/2,600,589
6. Step 6: Final answer
   x = 4,578,718.51