Finding the Third Proportional to 395,739 and 613,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   395,739 : 613,780.50 = 613,780.50 : x
2. Step 2: Convert to fraction form
   395,739/613,780.50 = 613,780.50/x
3. Step 3: Cross multiply
   395,739x = 613,780.50 × 613,780.50
4. Step 4: Simplify right side
   395,739x = 376,726,502,180.25
5. Step 5: Solve for x
   x = 376,726,502,180.25/395,739
6. Step 6: Final answer
   x = 951,956.98