Finding the Third Proportional to 150,553.69 and 221,671.69

Step by Step Solution

1. Step 1: Write the proportion equation
   150,553.69 : 221,671.69 = 221,671.69 : x
2. Step 2: Convert to fraction form
   150,553.69/221,671.69 = 221,671.69/x
3. Step 3: Cross multiply
   150,553.69x = 221,671.69 × 221,671.69
4. Step 4: Simplify right side
   150,553.69x = 49,138,337,039.10
5. Step 5: Solve for x
   x = 49,138,337,039.10/150,553.69
6. Step 6: Final answer
   x = 326,384.15