Finding the Third Proportional to 525,228 and 814,820

Step by Step Solution

1. Step 1: Write the proportion equation
   525,228 : 814,820 = 814,820 : x
2. Step 2: Convert to fraction form
   525,228/814,820 = 814,820/x
3. Step 3: Cross multiply
   525,228x = 814,820 × 814,820
4. Step 4: Simplify right side
   525,228x = 663,931,632,400
5. Step 5: Solve for x
   x = 663,931,632,400/525,228
6. Step 6: Final answer
   x = 1,264,082.71