Finding the Third Proportional to 72,231.75 and 155,216.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,231.75 : 155,216.25 = 155,216.25 : x
2. Step 2: Convert to fraction form
   72,231.75/155,216.25 = 155,216.25/x
3. Step 3: Cross multiply
   72,231.75x = 155,216.25 × 155,216.25
4. Step 4: Simplify right side
   72,231.75x = 24,092,084,264.06
5. Step 5: Solve for x
   x = 24,092,084,264.06/72,231.75
6. Step 6: Final answer
   x = 333,538.70