Finding the Third Proportional to 250,576 and 521,886

Step by Step Solution

1. Step 1: Write the proportion equation
   250,576 : 521,886 = 521,886 : x
2. Step 2: Convert to fraction form
   250,576/521,886 = 521,886/x
3. Step 3: Cross multiply
   250,576x = 521,886 × 521,886
4. Step 4: Simplify right side
   250,576x = 272,364,996,996
5. Step 5: Solve for x
   x = 272,364,996,996/250,576
6. Step 6: Final answer
   x = 1,086,955.64