Finding the Third Proportional to 450,410 and 978,700

Step by Step Solution

1. Step 1: Write the proportion equation
   450,410 : 978,700 = 978,700 : x
2. Step 2: Convert to fraction form
   450,410/978,700 = 978,700/x
3. Step 3: Cross multiply
   450,410x = 978,700 × 978,700
4. Step 4: Simplify right side
   450,410x = 957,853,690,000
5. Step 5: Solve for x
   x = 957,853,690,000/450,410
6. Step 6: Final answer
   x = 2,126,626.16