Finding the Third Proportional to 377,870 and 798,396

Step by Step Solution

1. Step 1: Write the proportion equation
   377,870 : 798,396 = 798,396 : x
2. Step 2: Convert to fraction form
   377,870/798,396 = 798,396/x
3. Step 3: Cross multiply
   377,870x = 798,396 × 798,396
4. Step 4: Simplify right side
   377,870x = 637,436,172,816
5. Step 5: Solve for x
   x = 637,436,172,816/377,870
6. Step 6: Final answer
   x = 1,686,919.24