Finding the Third Proportional to 525,288 and 814,932

Step by Step Solution

1. Step 1: Write the proportion equation
   525,288 : 814,932 = 814,932 : x
2. Step 2: Convert to fraction form
   525,288/814,932 = 814,932/x
3. Step 3: Cross multiply
   525,288x = 814,932 × 814,932
4. Step 4: Simplify right side
   525,288x = 664,114,164,624
5. Step 5: Solve for x
   x = 664,114,164,624/525,288
6. Step 6: Final answer
   x = 1,264,285.81