Finding the Third Proportional to 70,981.50 and 155,245.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,981.50 : 155,245.50 = 155,245.50 : x
2. Step 2: Convert to fraction form
   70,981.50/155,245.50 = 155,245.50/x
3. Step 3: Cross multiply
   70,981.50x = 155,245.50 × 155,245.50
4. Step 4: Simplify right side
   70,981.50x = 24,101,165,270.25
5. Step 5: Solve for x
   x = 24,101,165,270.25/70,981.50
6. Step 6: Final answer
   x = 339,541.50