Finding the Third Proportional to 303,467.50 and 468,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,467.50 : 468,890.50 = 468,890.50 : x
2. Step 2: Convert to fraction form
   303,467.50/468,890.50 = 468,890.50/x
3. Step 3: Cross multiply
   303,467.50x = 468,890.50 × 468,890.50
4. Step 4: Simplify right side
   303,467.50x = 219,858,300,990.25
5. Step 5: Solve for x
   x = 219,858,300,990.25/303,467.50
6. Step 6: Final answer
   x = 724,487.14