Finding the Third Proportional to 73,669.50 and 150,439.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,669.50 : 150,439.50 = 150,439.50 : x
2. Step 2: Convert to fraction form
   73,669.50/150,439.50 = 150,439.50/x
3. Step 3: Cross multiply
   73,669.50x = 150,439.50 × 150,439.50
4. Step 4: Simplify right side
   73,669.50x = 22,632,043,160.25
5. Step 5: Solve for x
   x = 22,632,043,160.25/73,669.50
6. Step 6: Final answer
   x = 307,210.49