Finding the Third Proportional to 179,064 and 389,760

Step by Step Solution

1. Step 1: Write the proportion equation
   179,064 : 389,760 = 389,760 : x
2. Step 2: Convert to fraction form
   179,064/389,760 = 389,760/x
3. Step 3: Cross multiply
   179,064x = 389,760 × 389,760
4. Step 4: Simplify right side
   179,064x = 151,912,857,600
5. Step 5: Solve for x
   x = 151,912,857,600/179,064
6. Step 6: Final answer
   x = 848,371.85