Finding the Third Proportional to 250,312 and 521,333

Step by Step Solution

1. Step 1: Write the proportion equation
   250,312 : 521,333 = 521,333 : x
2. Step 2: Convert to fraction form
   250,312/521,333 = 521,333/x
3. Step 3: Cross multiply
   250,312x = 521,333 × 521,333
4. Step 4: Simplify right side
   250,312x = 271,788,096,889
5. Step 5: Solve for x
   x = 271,788,096,889/250,312
6. Step 6: Final answer
   x = 1,085,797.31