Finding the Third Proportional to 198,856 and 301,172

Step by Step Solution

1. Step 1: Write the proportion equation
   198,856 : 301,172 = 301,172 : x
2. Step 2: Convert to fraction form
   198,856/301,172 = 301,172/x
3. Step 3: Cross multiply
   198,856x = 301,172 × 301,172
4. Step 4: Simplify right side
   198,856x = 90,704,573,584
5. Step 5: Solve for x
   x = 90,704,573,584/198,856
6. Step 6: Final answer
   x = 456,131.94