Finding the Third Proportional to 978,670 and 2,149,795

Step by Step Solution

1. Step 1: Write the proportion equation
   978,670 : 2,149,795 = 2,149,795 : x
2. Step 2: Convert to fraction form
   978,670/2,149,795 = 2,149,795/x
3. Step 3: Cross multiply
   978,670x = 2,149,795 × 2,149,795
4. Step 4: Simplify right side
   978,670x = 4,621,618,542,025
5. Step 5: Solve for x
   x = 4,621,618,542,025/978,670
6. Step 6: Final answer
   x = 4,722,346.19