Finding the Third Proportional to 72,674.50 and 150,816.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,674.50 : 150,816.50 = 150,816.50 : x
2. Step 2: Convert to fraction form
   72,674.50/150,816.50 = 150,816.50/x
3. Step 3: Cross multiply
   72,674.50x = 150,816.50 × 150,816.50
4. Step 4: Simplify right side
   72,674.50x = 22,745,616,672.25
5. Step 5: Solve for x
   x = 22,745,616,672.25/72,674.50
6. Step 6: Final answer
   x = 312,979.33