Finding the Third Proportional to 150,667.50 and 221,080.50

Step by Step Solution

1. Step 1: Write the proportion equation
   150,667.50 : 221,080.50 = 221,080.50 : x
2. Step 2: Convert to fraction form
   150,667.50/221,080.50 = 221,080.50/x
3. Step 3: Cross multiply
   150,667.50x = 221,080.50 × 221,080.50
4. Step 4: Simplify right side
   150,667.50x = 48,876,587,480.25
5. Step 5: Solve for x
   x = 48,876,587,480.25/150,667.50
6. Step 6: Final answer
   x = 324,400.34