Finding the Third Proportional to 190,990.88 and 404,748.38

Step by Step Solution

1. Step 1: Write the proportion equation
   190,990.88 : 404,748.38 = 404,748.38 : x
2. Step 2: Convert to fraction form
   190,990.88/404,748.38 = 404,748.38/x
3. Step 3: Cross multiply
   190,990.88x = 404,748.38 × 404,748.38
4. Step 4: Simplify right side
   190,990.88x = 163,821,247,065.14
5. Step 5: Solve for x
   x = 163,821,247,065.14/190,990.88
6. Step 6: Final answer
   x = 857,743.84