Finding the Third Proportional to 199,172 and 298,974

Step by Step Solution

1. Step 1: Write the proportion equation
   199,172 : 298,974 = 298,974 : x
2. Step 2: Convert to fraction form
   199,172/298,974 = 298,974/x
3. Step 3: Cross multiply
   199,172x = 298,974 × 298,974
4. Step 4: Simplify right side
   199,172x = 89,385,452,676
5. Step 5: Solve for x
   x = 89,385,452,676/199,172
6. Step 6: Final answer
   x = 448,785.23