Finding the Third Proportional to 150,039 and 212,296.50

Step by Step Solution

1. Step 1: Write the proportion equation
   150,039 : 212,296.50 = 212,296.50 : x
2. Step 2: Convert to fraction form
   150,039/212,296.50 = 212,296.50/x
3. Step 3: Cross multiply
   150,039x = 212,296.50 × 212,296.50
4. Step 4: Simplify right side
   150,039x = 45,069,803,912.25
5. Step 5: Solve for x
   x = 45,069,803,912.25/150,039
6. Step 6: Final answer
   x = 300,387.26