Finding the Third Proportional to 215,252 and 300,934

Step by Step Solution

1. Step 1: Write the proportion equation
   215,252 : 300,934 = 300,934 : x
2. Step 2: Convert to fraction form
   215,252/300,934 = 300,934/x
3. Step 3: Cross multiply
   215,252x = 300,934 × 300,934
4. Step 4: Simplify right side
   215,252x = 90,561,272,356
5. Step 5: Solve for x
   x = 90,561,272,356/215,252
6. Step 6: Final answer
   x = 420,722.09