Finding the Third Proportional to 359,812 and 528,048

Step by Step Solution

1. Step 1: Write the proportion equation
   359,812 : 528,048 = 528,048 : x
2. Step 2: Convert to fraction form
   359,812/528,048 = 528,048/x
3. Step 3: Cross multiply
   359,812x = 528,048 × 528,048
4. Step 4: Simplify right side
   359,812x = 278,834,690,304
5. Step 5: Solve for x
   x = 278,834,690,304/359,812
6. Step 6: Final answer
   x = 774,945.50