Finding the Third Proportional to 383,077.50 and 579,942

Step by Step Solution

1. Step 1: Write the proportion equation
   383,077.50 : 579,942 = 579,942 : x
2. Step 2: Convert to fraction form
   383,077.50/579,942 = 579,942/x
3. Step 3: Cross multiply
   383,077.50x = 579,942 × 579,942
4. Step 4: Simplify right side
   383,077.50x = 336,332,723,364
5. Step 5: Solve for x
   x = 336,332,723,364/383,077.50
6. Step 6: Final answer
   x = 877,975.67