Finding the Third Proportional to 179,869.50 and 388,554

Step by Step Solution

1. Step 1: Write the proportion equation
   179,869.50 : 388,554 = 388,554 : x
2. Step 2: Convert to fraction form
   179,869.50/388,554 = 388,554/x
3. Step 3: Cross multiply
   179,869.50x = 388,554 × 388,554
4. Step 4: Simplify right side
   179,869.50x = 150,974,210,916
5. Step 5: Solve for x
   x = 150,974,210,916/179,869.50
6. Step 6: Final answer
   x = 839,354.15