Finding the Third Proportional to 109,216.50 and 239,845.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,216.50 : 239,845.50 = 239,845.50 : x
2. Step 2: Convert to fraction form
   109,216.50/239,845.50 = 239,845.50/x
3. Step 3: Cross multiply
   109,216.50x = 239,845.50 × 239,845.50
4. Step 4: Simplify right side
   109,216.50x = 57,525,863,870.25
5. Step 5: Solve for x
   x = 57,525,863,870.25/109,216.50
6. Step 6: Final answer
   x = 526,714.04