Finding the Third Proportional to 809,518 and 1,169,510

Step by Step Solution

1. Step 1: Write the proportion equation
   809,518 : 1,169,510 = 1,169,510 : x
2. Step 2: Convert to fraction form
   809,518/1,169,510 = 1,169,510/x
3. Step 3: Cross multiply
   809,518x = 1,169,510 × 1,169,510
4. Step 4: Simplify right side
   809,518x = 1,367,753,640,100
5. Step 5: Solve for x
   x = 1,367,753,640,100/809,518
6. Step 6: Final answer
   x = 1,689,590.15