Finding the Third Proportional to 395,462.50 and 612,855

Step by Step Solution

1. Step 1: Write the proportion equation
   395,462.50 : 612,855 = 612,855 : x
2. Step 2: Convert to fraction form
   395,462.50/612,855 = 612,855/x
3. Step 3: Cross multiply
   395,462.50x = 612,855 × 612,855
4. Step 4: Simplify right side
   395,462.50x = 375,591,251,025
5. Step 5: Solve for x
   x = 375,591,251,025/395,462.50
6. Step 6: Final answer
   x = 949,751.88