Finding the Third Proportional to 539,830 and 1,181,355

Step by Step Solution

1. Step 1: Write the proportion equation
   539,830 : 1,181,355 = 1,181,355 : x
2. Step 2: Convert to fraction form
   539,830/1,181,355 = 1,181,355/x
3. Step 3: Cross multiply
   539,830x = 1,181,355 × 1,181,355
4. Step 4: Simplify right side
   539,830x = 1,395,599,636,025
5. Step 5: Solve for x
   x = 1,395,599,636,025/539,830
6. Step 6: Final answer
   x = 2,585,257.65