Finding the Third Proportional to 143,601 and 238,501.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,601 : 238,501.50 = 238,501.50 : x
2. Step 2: Convert to fraction form
   143,601/238,501.50 = 238,501.50/x
3. Step 3: Cross multiply
   143,601x = 238,501.50 × 238,501.50
4. Step 4: Simplify right side
   143,601x = 56,882,965,502.25
5. Step 5: Solve for x
   x = 56,882,965,502.25/143,601
6. Step 6: Final answer
   x = 396,118.17