Finding the Third Proportional to 1,263,774 and 1,639,482

Step by Step Solution

1. Step 1: Write the proportion equation
   1,263,774 : 1,639,482 = 1,639,482 : x
2. Step 2: Convert to fraction form
   1,263,774/1,639,482 = 1,639,482/x
3. Step 3: Cross multiply
   1,263,774x = 1,639,482 × 1,639,482
4. Step 4: Simplify right side
   1,263,774x = 2,687,901,228,324
5. Step 5: Solve for x
   x = 2,687,901,228,324/1,263,774
6. Step 6: Final answer
   x = 2,126,884.42