Finding the Third Proportional to 70,942.50 and 155,929.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,942.50 : 155,929.50 = 155,929.50 : x
2. Step 2: Convert to fraction form
   70,942.50/155,929.50 = 155,929.50/x
3. Step 3: Cross multiply
   70,942.50x = 155,929.50 × 155,929.50
4. Step 4: Simplify right side
   70,942.50x = 24,314,008,970.25
5. Step 5: Solve for x
   x = 24,314,008,970.25/70,942.50
6. Step 6: Final answer
   x = 342,728.39