Finding the Third Proportional to 163,540.69 and 350,728.31

Step by Step Solution

1. Step 1: Write the proportion equation
   163,540.69 : 350,728.31 = 350,728.31 : x
2. Step 2: Convert to fraction form
   163,540.69/350,728.31 = 350,728.31/x
3. Step 3: Cross multiply
   163,540.69x = 350,728.31 × 350,728.31
4. Step 4: Simplify right side
   163,540.69x = 123,010,349,189.10
5. Step 5: Solve for x
   x = 123,010,349,189.10/163,540.69
6. Step 6: Final answer
   x = 752,169.70