Finding the Third Proportional to 362,728 and 563,040

Step by Step Solution

1. Step 1: Write the proportion equation
   362,728 : 563,040 = 563,040 : x
2. Step 2: Convert to fraction form
   362,728/563,040 = 563,040/x
3. Step 3: Cross multiply
   362,728x = 563,040 × 563,040
4. Step 4: Simplify right side
   362,728x = 317,014,041,600
5. Step 5: Solve for x
   x = 317,014,041,600/362,728
6. Step 6: Final answer
   x = 873,971.80