Finding the Third Proportional to 178,482 and 388,068

Step by Step Solution

1. Step 1: Write the proportion equation
   178,482 : 388,068 = 388,068 : x
2. Step 2: Convert to fraction form
   178,482/388,068 = 388,068/x
3. Step 3: Cross multiply
   178,482x = 388,068 × 388,068
4. Step 4: Simplify right side
   178,482x = 150,596,772,624
5. Step 5: Solve for x
   x = 150,596,772,624/178,482
6. Step 6: Final answer
   x = 843,764.48