Finding the Third Proportional to 639,946 and 1,382,524

Step by Step Solution

1. Step 1: Write the proportion equation
   639,946 : 1,382,524 = 1,382,524 : x
2. Step 2: Convert to fraction form
   639,946/1,382,524 = 1,382,524/x
3. Step 3: Cross multiply
   639,946x = 1,382,524 × 1,382,524
4. Step 4: Simplify right side
   639,946x = 1,911,372,610,576
5. Step 5: Solve for x
   x = 1,911,372,610,576/639,946
6. Step 6: Final answer
   x = 2,986,771.71