Finding the Third Proportional to 303,007.50 and 637,422

Step by Step Solution

1. Step 1: Write the proportion equation
   303,007.50 : 637,422 = 637,422 : x
2. Step 2: Convert to fraction form
   303,007.50/637,422 = 637,422/x
3. Step 3: Cross multiply
   303,007.50x = 637,422 × 637,422
4. Step 4: Simplify right side
   303,007.50x = 406,306,806,084
5. Step 5: Solve for x
   x = 406,306,806,084/303,007.50
6. Step 6: Final answer
   x = 1,340,913.36