Finding the Third Proportional to 383,112 and 580,000.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,112 : 580,000.50 = 580,000.50 : x
2. Step 2: Convert to fraction form
   383,112/580,000.50 = 580,000.50/x
3. Step 3: Cross multiply
   383,112x = 580,000.50 × 580,000.50
4. Step 4: Simplify right side
   383,112x = 336,400,580,000.25
5. Step 5: Solve for x
   x = 336,400,580,000.25/383,112
6. Step 6: Final answer
   x = 878,073.72