Finding the Third Proportional to 179,481 and 388,680

Step by Step Solution

1. Step 1: Write the proportion equation
   179,481 : 388,680 = 388,680 : x
2. Step 2: Convert to fraction form
   179,481/388,680 = 388,680/x
3. Step 3: Cross multiply
   179,481x = 388,680 × 388,680
4. Step 4: Simplify right side
   179,481x = 151,072,142,400
5. Step 5: Solve for x
   x = 151,072,142,400/179,481
6. Step 6: Final answer
   x = 841,716.63