Finding the Third Proportional to 250,575 and 521,886

Step by Step Solution

1. Step 1: Write the proportion equation
   250,575 : 521,886 = 521,886 : x
2. Step 2: Convert to fraction form
   250,575/521,886 = 521,886/x
3. Step 3: Cross multiply
   250,575x = 521,886 × 521,886
4. Step 4: Simplify right side
   250,575x = 272,364,996,996
5. Step 5: Solve for x
   x = 272,364,996,996/250,575
6. Step 6: Final answer
   x = 1,086,959.98