Finding the Third Proportional to 395,593.50 and 612,936

Step by Step Solution

1. Step 1: Write the proportion equation
   395,593.50 : 612,936 = 612,936 : x
2. Step 2: Convert to fraction form
   395,593.50/612,936 = 612,936/x
3. Step 3: Cross multiply
   395,593.50x = 612,936 × 612,936
4. Step 4: Simplify right side
   395,593.50x = 375,690,540,096
5. Step 5: Solve for x
   x = 375,690,540,096/395,593.50
6. Step 6: Final answer
   x = 949,688.35