Finding the Third Proportional to 863,162 and 1,306,738

Step by Step Solution

1. Step 1: Write the proportion equation
   863,162 : 1,306,738 = 1,306,738 : x
2. Step 2: Convert to fraction form
   863,162/1,306,738 = 1,306,738/x
3. Step 3: Cross multiply
   863,162x = 1,306,738 × 1,306,738
4. Step 4: Simplify right side
   863,162x = 1,707,564,200,644
5. Step 5: Solve for x
   x = 1,707,564,200,644/863,162
6. Step 6: Final answer
   x = 1,978,266.19