Finding the Third Proportional to 105,610.50 and 219,960.56

Step by Step Solution

1. Step 1: Write the proportion equation
   105,610.50 : 219,960.56 = 219,960.56 : x
2. Step 2: Convert to fraction form
   105,610.50/219,960.56 = 219,960.56/x
3. Step 3: Cross multiply
   105,610.50x = 219,960.56 × 219,960.56
4. Step 4: Simplify right side
   105,610.50x = 48,382,649,055.32
5. Step 5: Solve for x
   x = 48,382,649,055.32/105,610.50
6. Step 6: Final answer
   x = 458,123.47