Finding the Third Proportional to 250,312 and 521,334

Step by Step Solution

1. Step 1: Write the proportion equation
   250,312 : 521,334 = 521,334 : x
2. Step 2: Convert to fraction form
   250,312/521,334 = 521,334/x
3. Step 3: Cross multiply
   250,312x = 521,334 × 521,334
4. Step 4: Simplify right side
   250,312x = 271,789,139,556
5. Step 5: Solve for x
   x = 271,789,139,556/250,312
6. Step 6: Final answer
   x = 1,085,801.48