Finding the Third Proportional to 116,099.50 and 239,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,099.50 : 239,425.50 = 239,425.50 : x
2. Step 2: Convert to fraction form
   116,099.50/239,425.50 = 239,425.50/x
3. Step 3: Cross multiply
   116,099.50x = 239,425.50 × 239,425.50
4. Step 4: Simplify right side
   116,099.50x = 57,324,570,050.25
5. Step 5: Solve for x
   x = 57,324,570,050.25/116,099.50
6. Step 6: Final answer
   x = 493,753.81