Finding the Third Proportional to 105,418.50 and 225,903

Step by Step Solution

1. Step 1: Write the proportion equation
   105,418.50 : 225,903 = 225,903 : x
2. Step 2: Convert to fraction form
   105,418.50/225,903 = 225,903/x
3. Step 3: Cross multiply
   105,418.50x = 225,903 × 225,903
4. Step 4: Simplify right side
   105,418.50x = 51,032,165,409
5. Step 5: Solve for x
   x = 51,032,165,409/105,418.50
6. Step 6: Final answer
   x = 484,091.17