Finding the Third Proportional to 199,326 and 298,440

Step by Step Solution

1. Step 1: Write the proportion equation
   199,326 : 298,440 = 298,440 : x
2. Step 2: Convert to fraction form
   199,326/298,440 = 298,440/x
3. Step 3: Cross multiply
   199,326x = 298,440 × 298,440
4. Step 4: Simplify right side
   199,326x = 89,066,433,600
5. Step 5: Solve for x
   x = 89,066,433,600/199,326
6. Step 6: Final answer
   x = 446,838.01