Finding the Third Proportional to 202,960.69 and 321,359.91

Step by Step Solution

1. Step 1: Write the proportion equation
   202,960.69 : 321,359.91 = 321,359.91 : x
2. Step 2: Convert to fraction form
   202,960.69/321,359.91 = 321,359.91/x
3. Step 3: Cross multiply
   202,960.69x = 321,359.91 × 321,359.91
4. Step 4: Simplify right side
   202,960.69x = 103,272,189,345.01
5. Step 5: Solve for x
   x = 103,272,189,345.01/202,960.69
6. Step 6: Final answer
   x = 508,828.54