Finding the Third Proportional to 220,275 and 340,804.50

Step by Step Solution

1. Step 1: Write the proportion equation
   220,275 : 340,804.50 = 340,804.50 : x
2. Step 2: Convert to fraction form
   220,275/340,804.50 = 340,804.50/x
3. Step 3: Cross multiply
   220,275x = 340,804.50 × 340,804.50
4. Step 4: Simplify right side
   220,275x = 116,147,707,220.25
5. Step 5: Solve for x
   x = 116,147,707,220.25/220,275
6. Step 6: Final answer
   x = 527,285.02