Finding the Third Proportional to 422,453.25 and 879,858

Step by Step Solution

1. Step 1: Write the proportion equation
   422,453.25 : 879,858 = 879,858 : x
2. Step 2: Convert to fraction form
   422,453.25/879,858 = 879,858/x
3. Step 3: Cross multiply
   422,453.25x = 879,858 × 879,858
4. Step 4: Simplify right side
   422,453.25x = 774,150,100,164
5. Step 5: Solve for x
   x = 774,150,100,164/422,453.25
6. Step 6: Final answer
   x = 1,832,510.70