Finding the Third Proportional to 72,448.50 and 155,515.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,448.50 : 155,515.50 = 155,515.50 : x
2. Step 2: Convert to fraction form
   72,448.50/155,515.50 = 155,515.50/x
3. Step 3: Cross multiply
   72,448.50x = 155,515.50 × 155,515.50
4. Step 4: Simplify right side
   72,448.50x = 24,185,070,740.25
5. Step 5: Solve for x
   x = 24,185,070,740.25/72,448.50
6. Step 6: Final answer
   x = 333,824.31