Finding the Third Proportional to 397,945.25 and 617,096

Step by Step Solution

1. Step 1: Write the proportion equation
   397,945.25 : 617,096 = 617,096 : x
2. Step 2: Convert to fraction form
   397,945.25/617,096 = 617,096/x
3. Step 3: Cross multiply
   397,945.25x = 617,096 × 617,096
4. Step 4: Simplify right side
   397,945.25x = 380,807,473,216
5. Step 5: Solve for x
   x = 380,807,473,216/397,945.25
6. Step 6: Final answer
   x = 956,934.34