Finding the Third Proportional to 199,188 and 298,242

Step by Step Solution

1. Step 1: Write the proportion equation
   199,188 : 298,242 = 298,242 : x
2. Step 2: Convert to fraction form
   199,188/298,242 = 298,242/x
3. Step 3: Cross multiply
   199,188x = 298,242 × 298,242
4. Step 4: Simplify right side
   199,188x = 88,948,290,564
5. Step 5: Solve for x
   x = 88,948,290,564/199,188
6. Step 6: Final answer
   x = 446,554.46