Finding the Third Proportional to 355,606 and 839,442

Step by Step Solution

1. Step 1: Write the proportion equation
   355,606 : 839,442 = 839,442 : x
2. Step 2: Convert to fraction form
   355,606/839,442 = 839,442/x
3. Step 3: Cross multiply
   355,606x = 839,442 × 839,442
4. Step 4: Simplify right side
   355,606x = 704,662,871,364
5. Step 5: Solve for x
   x = 704,662,871,364/355,606
6. Step 6: Final answer
   x = 1,981,583.19