Finding the Third Proportional to 179,431.50 and 388,590

Step by Step Solution

1. Step 1: Write the proportion equation
   179,431.50 : 388,590 = 388,590 : x
2. Step 2: Convert to fraction form
   179,431.50/388,590 = 388,590/x
3. Step 3: Cross multiply
   179,431.50x = 388,590 × 388,590
4. Step 4: Simplify right side
   179,431.50x = 151,002,188,100
5. Step 5: Solve for x
   x = 151,002,188,100/179,431.50
6. Step 6: Final answer
   x = 841,558.97