Finding the Third Proportional to 190,987.50 and 404,742

Step by Step Solution

1. Step 1: Write the proportion equation
   190,987.50 : 404,742 = 404,742 : x
2. Step 2: Convert to fraction form
   190,987.50/404,742 = 404,742/x
3. Step 3: Cross multiply
   190,987.50x = 404,742 × 404,742
4. Step 4: Simplify right side
   190,987.50x = 163,816,086,564
5. Step 5: Solve for x
   x = 163,816,086,564/190,987.50
6. Step 6: Final answer
   x = 857,731.98