Finding the Third Proportional to 320,410.50 and 483,076.50

Step by Step Solution

1. Step 1: Write the proportion equation
   320,410.50 : 483,076.50 = 483,076.50 : x
2. Step 2: Convert to fraction form
   320,410.50/483,076.50 = 483,076.50/x
3. Step 3: Cross multiply
   320,410.50x = 483,076.50 × 483,076.50
4. Step 4: Simplify right side
   320,410.50x = 233,362,904,852.25
5. Step 5: Solve for x
   x = 233,362,904,852.25/320,410.50
6. Step 6: Final answer
   x = 728,324.77