Finding the Third Proportional to 549,589 and 1,158,218

Step by Step Solution

1. Step 1: Write the proportion equation
   549,589 : 1,158,218 = 1,158,218 : x
2. Step 2: Convert to fraction form
   549,589/1,158,218 = 1,158,218/x
3. Step 3: Cross multiply
   549,589x = 1,158,218 × 1,158,218
4. Step 4: Simplify right side
   549,589x = 1,341,468,935,524
5. Step 5: Solve for x
   x = 1,341,468,935,524/549,589
6. Step 6: Final answer
   x = 2,440,858.42