Finding the Third Proportional to 303,445.25 and 654,219

Step by Step Solution

1. Step 1: Write the proportion equation
   303,445.25 : 654,219 = 654,219 : x
2. Step 2: Convert to fraction form
   303,445.25/654,219 = 654,219/x
3. Step 3: Cross multiply
   303,445.25x = 654,219 × 654,219
4. Step 4: Simplify right side
   303,445.25x = 428,002,499,961
5. Step 5: Solve for x
   x = 428,002,499,961/303,445.25
6. Step 6: Final answer
   x = 1,410,476.85