Finding the Third Proportional to 308,412.56 and 483,919.31

Step by Step Solution

1. Step 1: Write the proportion equation
   308,412.56 : 483,919.31 = 483,919.31 : x
2. Step 2: Convert to fraction form
   308,412.56/483,919.31 = 483,919.31/x
3. Step 3: Cross multiply
   308,412.56x = 483,919.31 × 483,919.31
4. Step 4: Simplify right side
   308,412.56x = 234,177,901,010.47
5. Step 5: Solve for x
   x = 234,177,901,010.47/308,412.56
6. Step 6: Final answer
   x = 759,300.79