Finding the Third Proportional to 190,238 and 401,696

Step by Step Solution

1. Step 1: Write the proportion equation
   190,238 : 401,696 = 401,696 : x
2. Step 2: Convert to fraction form
   190,238/401,696 = 401,696/x
3. Step 3: Cross multiply
   190,238x = 401,696 × 401,696
4. Step 4: Simplify right side
   190,238x = 161,359,676,416
5. Step 5: Solve for x
   x = 161,359,676,416/190,238
6. Step 6: Final answer
   x = 848,198.97