Finding the Third Proportional to 254,404.50 and 395,615.25

Step by Step Solution

1. Step 1: Write the proportion equation
   254,404.50 : 395,615.25 = 395,615.25 : x
2. Step 2: Convert to fraction form
   254,404.50/395,615.25 = 395,615.25/x
3. Step 3: Cross multiply
   254,404.50x = 395,615.25 × 395,615.25
4. Step 4: Simplify right side
   254,404.50x = 156,511,426,032.56
5. Step 5: Solve for x
   x = 156,511,426,032.56/254,404.50
6. Step 6: Final answer
   x = 615,206.99