Finding the Third Proportional to 140,908.50 and 248,341.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,908.50 : 248,341.50 = 248,341.50 : x
2. Step 2: Convert to fraction form
   140,908.50/248,341.50 = 248,341.50/x
3. Step 3: Cross multiply
   140,908.50x = 248,341.50 × 248,341.50
4. Step 4: Simplify right side
   140,908.50x = 61,673,500,622.25
5. Step 5: Solve for x
   x = 61,673,500,622.25/140,908.50
6. Step 6: Final answer
   x = 437,684.74