Finding the Third Proportional to 71,331 and 150,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,331 : 150,619.50 = 150,619.50 : x
2. Step 2: Convert to fraction form
   71,331/150,619.50 = 150,619.50/x
3. Step 3: Cross multiply
   71,331x = 150,619.50 × 150,619.50
4. Step 4: Simplify right side
   71,331x = 22,686,233,780.25
5. Step 5: Solve for x
   x = 22,686,233,780.25/71,331
6. Step 6: Final answer
   x = 318,041.72