Finding the Third Proportional to 518,559 and 846,754.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,559 : 846,754.50 = 846,754.50 : x
2. Step 2: Convert to fraction form
   518,559/846,754.50 = 846,754.50/x
3. Step 3: Cross multiply
   518,559x = 846,754.50 × 846,754.50
4. Step 4: Simplify right side
   518,559x = 716,993,183,270.25
5. Step 5: Solve for x
   x = 716,993,183,270.25/518,559
6. Step 6: Final answer
   x = 1,382,664.62