Finding the Third Proportional to 250,620 and 521,976

Step by Step Solution

1. Step 1: Write the proportion equation
   250,620 : 521,976 = 521,976 : x
2. Step 2: Convert to fraction form
   250,620/521,976 = 521,976/x
3. Step 3: Cross multiply
   250,620x = 521,976 × 521,976
4. Step 4: Simplify right side
   250,620x = 272,458,944,576
5. Step 5: Solve for x
   x = 272,458,944,576/250,620
6. Step 6: Final answer
   x = 1,087,139.67