Finding the Third Proportional to 274,784.50 and 579,087

Step by Step Solution

1. Step 1: Write the proportion equation
   274,784.50 : 579,087 = 579,087 : x
2. Step 2: Convert to fraction form
   274,784.50/579,087 = 579,087/x
3. Step 3: Cross multiply
   274,784.50x = 579,087 × 579,087
4. Step 4: Simplify right side
   274,784.50x = 335,341,753,569
5. Step 5: Solve for x
   x = 335,341,753,569/274,784.50
6. Step 6: Final answer
   x = 1,220,380.89