Finding the Third Proportional to 639,795 and 1,400,118

Step by Step Solution

1. Step 1: Write the proportion equation
   639,795 : 1,400,118 = 1,400,118 : x
2. Step 2: Convert to fraction form
   639,795/1,400,118 = 1,400,118/x
3. Step 3: Cross multiply
   639,795x = 1,400,118 × 1,400,118
4. Step 4: Simplify right side
   639,795x = 1,960,330,413,924
5. Step 5: Solve for x
   x = 1,960,330,413,924/639,795
6. Step 6: Final answer
   x = 3,063,997.71