Finding the Third Proportional to 303,388 and 662,072

Step by Step Solution

1. Step 1: Write the proportion equation
   303,388 : 662,072 = 662,072 : x
2. Step 2: Convert to fraction form
   303,388/662,072 = 662,072/x
3. Step 3: Cross multiply
   303,388x = 662,072 × 662,072
4. Step 4: Simplify right side
   303,388x = 438,339,333,184
5. Step 5: Solve for x
   x = 438,339,333,184/303,388
6. Step 6: Final answer
   x = 1,444,814.34