Finding the Third Proportional to 83,539 and 173,990

Step by Step Solution

1. Step 1: Write the proportion equation
   83,539 : 173,990 = 173,990 : x
2. Step 2: Convert to fraction form
   83,539/173,990 = 173,990/x
3. Step 3: Cross multiply
   83,539x = 173,990 × 173,990
4. Step 4: Simplify right side
   83,539x = 30,272,520,100
5. Step 5: Solve for x
   x = 30,272,520,100/83,539
6. Step 6: Final answer
   x = 362,375.90