Finding the Third Proportional to 388,872 and 852,494

Step by Step Solution

1. Step 1: Write the proportion equation
   388,872 : 852,494 = 852,494 : x
2. Step 2: Convert to fraction form
   388,872/852,494 = 852,494/x
3. Step 3: Cross multiply
   388,872x = 852,494 × 852,494
4. Step 4: Simplify right side
   388,872x = 726,746,020,036
5. Step 5: Solve for x
   x = 726,746,020,036/388,872
6. Step 6: Final answer
   x = 1,868,856.64