Finding the Third Proportional to 1,279,404 and 2,814,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,279,404 : 2,814,688 = 2,814,688 : x
2. Step 2: Convert to fraction form
   1,279,404/2,814,688 = 2,814,688/x
3. Step 3: Cross multiply
   1,279,404x = 2,814,688 × 2,814,688
4. Step 4: Simplify right side
   1,279,404x = 7,922,468,537,344
5. Step 5: Solve for x
   x = 7,922,468,537,344/1,279,404
6. Step 6: Final answer
   x = 6,192,311.84