Finding the Third Proportional to 359,810 and 528,049

Step by Step Solution

1. Step 1: Write the proportion equation
   359,810 : 528,049 = 528,049 : x
2. Step 2: Convert to fraction form
   359,810/528,049 = 528,049/x
3. Step 3: Cross multiply
   359,810x = 528,049 × 528,049
4. Step 4: Simplify right side
   359,810x = 278,835,746,401
5. Step 5: Solve for x
   x = 278,835,746,401/359,810
6. Step 6: Final answer
   x = 774,952.74