Finding the Third Proportional to 190,147.50 and 404,959.50

Step by Step Solution

1. Step 1: Write the proportion equation
   190,147.50 : 404,959.50 = 404,959.50 : x
2. Step 2: Convert to fraction form
   190,147.50/404,959.50 = 404,959.50/x
3. Step 3: Cross multiply
   190,147.50x = 404,959.50 × 404,959.50
4. Step 4: Simplify right side
   190,147.50x = 163,992,196,640.25
5. Step 5: Solve for x
   x = 163,992,196,640.25/190,147.50
6. Step 6: Final answer
   x = 862,447.29