Finding the Third Proportional to 359,810 and 528,050

Step by Step Solution

1. Step 1: Write the proportion equation
   359,810 : 528,050 = 528,050 : x
2. Step 2: Convert to fraction form
   359,810/528,050 = 528,050/x
3. Step 3: Cross multiply
   359,810x = 528,050 × 528,050
4. Step 4: Simplify right side
   359,810x = 278,836,802,500
5. Step 5: Solve for x
   x = 278,836,802,500/359,810
6. Step 6: Final answer
   x = 774,955.68