Finding the Third Proportional to 395,715 and 613,650

Step by Step Solution

1. Step 1: Write the proportion equation
   395,715 : 613,650 = 613,650 : x
2. Step 2: Convert to fraction form
   395,715/613,650 = 613,650/x
3. Step 3: Cross multiply
   395,715x = 613,650 × 613,650
4. Step 4: Simplify right side
   395,715x = 376,566,322,500
5. Step 5: Solve for x
   x = 376,566,322,500/395,715
6. Step 6: Final answer
   x = 951,609.93