Finding the Third Proportional to 978,648 and 2,149,751

Step by Step Solution

1. Step 1: Write the proportion equation
   978,648 : 2,149,751 = 2,149,751 : x
2. Step 2: Convert to fraction form
   978,648/2,149,751 = 2,149,751/x
3. Step 3: Cross multiply
   978,648x = 2,149,751 × 2,149,751
4. Step 4: Simplify right side
   978,648x = 4,621,429,362,001
5. Step 5: Solve for x
   x = 4,621,429,362,001/978,648
6. Step 6: Final answer
   x = 4,722,259.04