Finding the Third Proportional to 108,013.50 and 216,040.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,013.50 : 216,040.50 = 216,040.50 : x
2. Step 2: Convert to fraction form
   108,013.50/216,040.50 = 216,040.50/x
3. Step 3: Cross multiply
   108,013.50x = 216,040.50 × 216,040.50
4. Step 4: Simplify right side
   108,013.50x = 46,673,497,640.25
5. Step 5: Solve for x
   x = 46,673,497,640.25/108,013.50
6. Step 6: Final answer
   x = 432,108.00