Finding the Third Proportional to 325,863 and 681,518.25

Step by Step Solution

1. Step 1: Write the proportion equation
   325,863 : 681,518.25 = 681,518.25 : x
2. Step 2: Convert to fraction form
   325,863/681,518.25 = 681,518.25/x
3. Step 3: Cross multiply
   325,863x = 681,518.25 × 681,518.25
4. Step 4: Simplify right side
   325,863x = 464,467,125,083.06
5. Step 5: Solve for x
   x = 464,467,125,083.06/325,863
6. Step 6: Final answer
   x = 1,425,344.78