Finding the Third Proportional to 639,262 and 1,366,004

Step by Step Solution

1. Step 1: Write the proportion equation
   639,262 : 1,366,004 = 1,366,004 : x
2. Step 2: Convert to fraction form
   639,262/1,366,004 = 1,366,004/x
3. Step 3: Cross multiply
   639,262x = 1,366,004 × 1,366,004
4. Step 4: Simplify right side
   639,262x = 1,865,966,928,016
5. Step 5: Solve for x
   x = 1,865,966,928,016/639,262
6. Step 6: Final answer
   x = 2,918,939.23