Finding the Third Proportional to 978,034 and 2,100,685

Step by Step Solution

1. Step 1: Write the proportion equation
   978,034 : 2,100,685 = 2,100,685 : x
2. Step 2: Convert to fraction form
   978,034/2,100,685 = 2,100,685/x
3. Step 3: Cross multiply
   978,034x = 2,100,685 × 2,100,685
4. Step 4: Simplify right side
   978,034x = 4,412,877,469,225
5. Step 5: Solve for x
   x = 4,412,877,469,225/978,034
6. Step 6: Final answer
   x = 4,511,987.79