Finding the Third Proportional to 1,153,589 and 1,720,825

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153,589 : 1,720,825 = 1,720,825 : x
2. Step 2: Convert to fraction form
   1,153,589/1,720,825 = 1,720,825/x
3. Step 3: Cross multiply
   1,153,589x = 1,720,825 × 1,720,825
4. Step 4: Simplify right side
   1,153,589x = 2,961,238,680,625
5. Step 5: Solve for x
   x = 2,961,238,680,625/1,153,589
6. Step 6: Final answer
   x = 2,566,978.95