Finding the Third Proportional to 353,208 and 772,019

Step by Step Solution

1. Step 1: Write the proportion equation
   353,208 : 772,019 = 772,019 : x
2. Step 2: Convert to fraction form
   353,208/772,019 = 772,019/x
3. Step 3: Cross multiply
   353,208x = 772,019 × 772,019
4. Step 4: Simplify right side
   353,208x = 596,013,336,361
5. Step 5: Solve for x
   x = 596,013,336,361/353,208
6. Step 6: Final answer
   x = 1,687,428.76