Finding the Third Proportional to 359,810 and 528,051

Step by Step Solution

1. Step 1: Write the proportion equation
   359,810 : 528,051 = 528,051 : x
2. Step 2: Convert to fraction form
   359,810/528,051 = 528,051/x
3. Step 3: Cross multiply
   359,810x = 528,051 × 528,051
4. Step 4: Simplify right side
   359,810x = 278,837,858,601
5. Step 5: Solve for x
   x = 278,837,858,601/359,810
6. Step 6: Final answer
   x = 774,958.61