Finding the Third Proportional to 359,868 and 774,222

Step by Step Solution

1. Step 1: Write the proportion equation
   359,868 : 774,222 = 774,222 : x
2. Step 2: Convert to fraction form
   359,868/774,222 = 774,222/x
3. Step 3: Cross multiply
   359,868x = 774,222 × 774,222
4. Step 4: Simplify right side
   359,868x = 599,419,705,284
5. Step 5: Solve for x
   x = 599,419,705,284/359,868
6. Step 6: Final answer
   x = 1,665,665.48