Finding the Third Proportional to 616,986 and 1,251,144

Step by Step Solution

1. Step 1: Write the proportion equation
   616,986 : 1,251,144 = 1,251,144 : x
2. Step 2: Convert to fraction form
   616,986/1,251,144 = 1,251,144/x
3. Step 3: Cross multiply
   616,986x = 1,251,144 × 1,251,144
4. Step 4: Simplify right side
   616,986x = 1,565,361,308,736
5. Step 5: Solve for x
   x = 1,565,361,308,736/616,986
6. Step 6: Final answer
   x = 2,537,109.93