Finding the Third Proportional to 250,308 and 521,325

Step by Step Solution

1. Step 1: Write the proportion equation
   250,308 : 521,325 = 521,325 : x
2. Step 2: Convert to fraction form
   250,308/521,325 = 521,325/x
3. Step 3: Cross multiply
   250,308x = 521,325 × 521,325
4. Step 4: Simplify right side
   250,308x = 271,779,755,625
5. Step 5: Solve for x
   x = 271,779,755,625/250,308
6. Step 6: Final answer
   x = 1,085,781.34