Finding the Third Proportional to 726,138 and 1,065,879

Step by Step Solution

1. Step 1: Write the proportion equation
   726,138 : 1,065,879 = 1,065,879 : x
2. Step 2: Convert to fraction form
   726,138/1,065,879 = 1,065,879/x
3. Step 3: Cross multiply
   726,138x = 1,065,879 × 1,065,879
4. Step 4: Simplify right side
   726,138x = 1,136,098,042,641
5. Step 5: Solve for x
   x = 1,136,098,042,641/726,138
6. Step 6: Final answer
   x = 1,564,575.94