Finding the Third Proportional to 355,648 and 839,528

Step by Step Solution

1. Step 1: Write the proportion equation
   355,648 : 839,528 = 839,528 : x
2. Step 2: Convert to fraction form
   355,648/839,528 = 839,528/x
3. Step 3: Cross multiply
   355,648x = 839,528 × 839,528
4. Step 4: Simplify right side
   355,648x = 704,807,262,784
5. Step 5: Solve for x
   x = 704,807,262,784/355,648
6. Step 6: Final answer
   x = 1,981,755.17