Finding the Third Proportional to 978,647 and 2,149,750

Step by Step Solution

1. Step 1: Write the proportion equation
   978,647 : 2,149,750 = 2,149,750 : x
2. Step 2: Convert to fraction form
   978,647/2,149,750 = 2,149,750/x
3. Step 3: Cross multiply
   978,647x = 2,149,750 × 2,149,750
4. Step 4: Simplify right side
   978,647x = 4,621,425,062,500
5. Step 5: Solve for x
   x = 4,621,425,062,500/978,647
6. Step 6: Final answer
   x = 4,722,259.47