Finding the Third Proportional to 722,589 and 1,016,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   722,589 : 1,016,665.50 = 1,016,665.50 : x
2. Step 2: Convert to fraction form
   722,589/1,016,665.50 = 1,016,665.50/x
3. Step 3: Cross multiply
   722,589x = 1,016,665.50 × 1,016,665.50
4. Step 4: Simplify right side
   722,589x = 1,033,608,738,890.25
5. Step 5: Solve for x
   x = 1,033,608,738,890.25/722,589
6. Step 6: Final answer
   x = 1,430,424.13