Finding the Third Proportional to 150,133.50 and 308,731.50

Step by Step Solution

1. Step 1: Write the proportion equation
   150,133.50 : 308,731.50 = 308,731.50 : x
2. Step 2: Convert to fraction form
   150,133.50/308,731.50 = 308,731.50/x
3. Step 3: Cross multiply
   150,133.50x = 308,731.50 × 308,731.50
4. Step 4: Simplify right side
   150,133.50x = 95,315,139,092.25
5. Step 5: Solve for x
   x = 95,315,139,092.25/150,133.50
6. Step 6: Final answer
   x = 634,869.23