Finding the Third Proportional to 178,726.50 and 384,912

Step by Step Solution

1. Step 1: Write the proportion equation
   178,726.50 : 384,912 = 384,912 : x
2. Step 2: Convert to fraction form
   178,726.50/384,912 = 384,912/x
3. Step 3: Cross multiply
   178,726.50x = 384,912 × 384,912
4. Step 4: Simplify right side
   178,726.50x = 148,157,247,744
5. Step 5: Solve for x
   x = 148,157,247,744/178,726.50
6. Step 6: Final answer
   x = 828,960.72