Finding the Third Proportional to 2,021,056 and 4,378,563

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,056 : 4,378,563 = 4,378,563 : x
2. Step 2: Convert to fraction form
   2,021,056/4,378,563 = 4,378,563/x
3. Step 3: Cross multiply
   2,021,056x = 4,378,563 × 4,378,563
4. Step 4: Simplify right side
   2,021,056x = 19,171,813,944,969
5. Step 5: Solve for x
   x = 19,171,813,944,969/2,021,056
6. Step 6: Final answer
   x = 9,486,037.96