Finding the Third Proportional to 90,844.50 and 199,590

Step by Step Solution

1. Step 1: Write the proportion equation
   90,844.50 : 199,590 = 199,590 : x
2. Step 2: Convert to fraction form
   90,844.50/199,590 = 199,590/x
3. Step 3: Cross multiply
   90,844.50x = 199,590 × 199,590
4. Step 4: Simplify right side
   90,844.50x = 39,836,168,100
5. Step 5: Solve for x
   x = 39,836,168,100/90,844.50
6. Step 6: Final answer
   x = 438,509.41