Finding the Third Proportional to 360,728 and 560,740.50

Step by Step Solution

1. Step 1: Write the proportion equation
   360,728 : 560,740.50 = 560,740.50 : x
2. Step 2: Convert to fraction form
   360,728/560,740.50 = 560,740.50/x
3. Step 3: Cross multiply
   360,728x = 560,740.50 × 560,740.50
4. Step 4: Simplify right side
   360,728x = 314,429,908,340.25
5. Step 5: Solve for x
   x = 314,429,908,340.25/360,728
6. Step 6: Final answer
   x = 871,653.73