Finding the Third Proportional to 250,336 and 521,384

Step by Step Solution

1. Step 1: Write the proportion equation
   250,336 : 521,384 = 521,384 : x
2. Step 2: Convert to fraction form
   250,336/521,384 = 521,384/x
3. Step 3: Cross multiply
   250,336x = 521,384 × 521,384
4. Step 4: Simplify right side
   250,336x = 271,841,275,456
5. Step 5: Solve for x
   x = 271,841,275,456/250,336
6. Step 6: Final answer
   x = 1,085,905.64