Finding the Third Proportional to 775,628 and 1,621,524

Step by Step Solution

1. Step 1: Write the proportion equation
   775,628 : 1,621,524 = 1,621,524 : x
2. Step 2: Convert to fraction form
   775,628/1,621,524 = 1,621,524/x
3. Step 3: Cross multiply
   775,628x = 1,621,524 × 1,621,524
4. Step 4: Simplify right side
   775,628x = 2,629,340,082,576
5. Step 5: Solve for x
   x = 2,629,340,082,576/775,628
6. Step 6: Final answer
   x = 3,389,949.93