Finding the Third Proportional to 528,123 and 1,140,420

Step by Step Solution

1. Step 1: Write the proportion equation
   528,123 : 1,140,420 = 1,140,420 : x
2. Step 2: Convert to fraction form
   528,123/1,140,420 = 1,140,420/x
3. Step 3: Cross multiply
   528,123x = 1,140,420 × 1,140,420
4. Step 4: Simplify right side
   528,123x = 1,300,557,776,400
5. Step 5: Solve for x
   x = 1,300,557,776,400/528,123
6. Step 6: Final answer
   x = 2,462,603.93