Finding the Third Proportional to 585,990 and 1,279,368

Step by Step Solution

1. Step 1: Write the proportion equation
   585,990 : 1,279,368 = 1,279,368 : x
2. Step 2: Convert to fraction form
   585,990/1,279,368 = 1,279,368/x
3. Step 3: Cross multiply
   585,990x = 1,279,368 × 1,279,368
4. Step 4: Simplify right side
   585,990x = 1,636,782,479,424
5. Step 5: Solve for x
   x = 1,636,782,479,424/585,990
6. Step 6: Final answer
   x = 2,793,191.83