Finding the Third Proportional to 271,309.50 and 398,844

Step by Step Solution

1. Step 1: Write the proportion equation
   271,309.50 : 398,844 = 398,844 : x
2. Step 2: Convert to fraction form
   271,309.50/398,844 = 398,844/x
3. Step 3: Cross multiply
   271,309.50x = 398,844 × 398,844
4. Step 4: Simplify right side
   271,309.50x = 159,076,536,336
5. Step 5: Solve for x
   x = 159,076,536,336/271,309.50
6. Step 6: Final answer
   x = 586,328.66