Finding the Third Proportional to 105,272 and 225,558

Step by Step Solution

1. Step 1: Write the proportion equation
   105,272 : 225,558 = 225,558 : x
2. Step 2: Convert to fraction form
   105,272/225,558 = 225,558/x
3. Step 3: Cross multiply
   105,272x = 225,558 × 225,558
4. Step 4: Simplify right side
   105,272x = 50,876,411,364
5. Step 5: Solve for x
   x = 50,876,411,364/105,272
6. Step 6: Final answer
   x = 483,285.31