Finding the Third Proportional to 453,680 and 978,228

Step by Step Solution

1. Step 1: Write the proportion equation
   453,680 : 978,228 = 978,228 : x
2. Step 2: Convert to fraction form
   453,680/978,228 = 978,228/x
3. Step 3: Cross multiply
   453,680x = 978,228 × 978,228
4. Step 4: Simplify right side
   453,680x = 956,930,019,984
5. Step 5: Solve for x
   x = 956,930,019,984/453,680
6. Step 6: Final answer
   x = 2,109,262.08