Finding the Third Proportional to 235,509 and 515,804.25

Step by Step Solution

1. Step 1: Write the proportion equation
   235,509 : 515,804.25 = 515,804.25 : x
2. Step 2: Convert to fraction form
   235,509/515,804.25 = 515,804.25/x
3. Step 3: Cross multiply
   235,509x = 515,804.25 × 515,804.25
4. Step 4: Simplify right side
   235,509x = 266,054,024,318.06
5. Step 5: Solve for x
   x = 266,054,024,318.06/235,509
6. Step 6: Final answer
   x = 1,129,697.91