Finding the Third Proportional to 274,792.50 and 579,105

Step by Step Solution

1. Step 1: Write the proportion equation
   274,792.50 : 579,105 = 579,105 : x
2. Step 2: Convert to fraction form
   274,792.50/579,105 = 579,105/x
3. Step 3: Cross multiply
   274,792.50x = 579,105 × 579,105
4. Step 4: Simplify right side
   274,792.50x = 335,362,601,025
5. Step 5: Solve for x
   x = 335,362,601,025/274,792.50
6. Step 6: Final answer
   x = 1,220,421.23