Finding the Third Proportional to 450,434.50 and 978,749

Step by Step Solution

1. Step 1: Write the proportion equation
   450,434.50 : 978,749 = 978,749 : x
2. Step 2: Convert to fraction form
   450,434.50/978,749 = 978,749/x
3. Step 3: Cross multiply
   450,434.50x = 978,749 × 978,749
4. Step 4: Simplify right side
   450,434.50x = 957,949,605,001
5. Step 5: Solve for x
   x = 957,949,605,001/450,434.50
6. Step 6: Final answer
   x = 2,126,723.43