Finding the Third Proportional to 261,595.50 and 558,876

Step by Step Solution

1. Step 1: Write the proportion equation
   261,595.50 : 558,876 = 558,876 : x
2. Step 2: Convert to fraction form
   261,595.50/558,876 = 558,876/x
3. Step 3: Cross multiply
   261,595.50x = 558,876 × 558,876
4. Step 4: Simplify right side
   261,595.50x = 312,342,383,376
5. Step 5: Solve for x
   x = 312,342,383,376/261,595.50
6. Step 6: Final answer
   x = 1,193,989.89