Finding the Third Proportional to 389,614.50 and 582,852

Step by Step Solution

1. Step 1: Write the proportion equation
   389,614.50 : 582,852 = 582,852 : x
2. Step 2: Convert to fraction form
   389,614.50/582,852 = 582,852/x
3. Step 3: Cross multiply
   389,614.50x = 582,852 × 582,852
4. Step 4: Simplify right side
   389,614.50x = 339,716,453,904
5. Step 5: Solve for x
   x = 339,716,453,904/389,614.50
6. Step 6: Final answer
   x = 871,929.70