Finding the Third Proportional to 539,919 and 1,181,520

Step by Step Solution

1. Step 1: Write the proportion equation
   539,919 : 1,181,520 = 1,181,520 : x
2. Step 2: Convert to fraction form
   539,919/1,181,520 = 1,181,520/x
3. Step 3: Cross multiply
   539,919x = 1,181,520 × 1,181,520
4. Step 4: Simplify right side
   539,919x = 1,395,989,510,400
5. Step 5: Solve for x
   x = 1,395,989,510,400/539,919
6. Step 6: Final answer
   x = 2,585,553.59