Finding the Third Proportional to 303,172 and 654,600

Step by Step Solution

1. Step 1: Write the proportion equation
   303,172 : 654,600 = 654,600 : x
2. Step 2: Convert to fraction form
   303,172/654,600 = 654,600/x
3. Step 3: Cross multiply
   303,172x = 654,600 × 654,600
4. Step 4: Simplify right side
   303,172x = 428,501,160,000
5. Step 5: Solve for x
   x = 428,501,160,000/303,172
6. Step 6: Final answer
   x = 1,413,392.93