Finding the Third Proportional to 215,892 and 301,900

Step by Step Solution

1. Step 1: Write the proportion equation
   215,892 : 301,900 = 301,900 : x
2. Step 2: Convert to fraction form
   215,892/301,900 = 301,900/x
3. Step 3: Cross multiply
   215,892x = 301,900 × 301,900
4. Step 4: Simplify right side
   215,892x = 91,143,610,000
5. Step 5: Solve for x
   x = 91,143,610,000/215,892
6. Step 6: Final answer
   x = 422,172.24