Finding the Third Proportional to 519,556 and 801,222

Step by Step Solution

1. Step 1: Write the proportion equation
   519,556 : 801,222 = 801,222 : x
2. Step 2: Convert to fraction form
   519,556/801,222 = 801,222/x
3. Step 3: Cross multiply
   519,556x = 801,222 × 801,222
4. Step 4: Simplify right side
   519,556x = 641,956,693,284
5. Step 5: Solve for x
   x = 641,956,693,284/519,556
6. Step 6: Final answer
   x = 1,235,587.10