Finding the Third Proportional to 401,952 and 879,240

Step by Step Solution

1. Step 1: Write the proportion equation
   401,952 : 879,240 = 879,240 : x
2. Step 2: Convert to fraction form
   401,952/879,240 = 879,240/x
3. Step 3: Cross multiply
   401,952x = 879,240 × 879,240
4. Step 4: Simplify right side
   401,952x = 773,062,977,600
5. Step 5: Solve for x
   x = 773,062,977,600/401,952
6. Step 6: Final answer
   x = 1,923,271.88