Finding the Third Proportional to 383,376 and 580,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,376 : 580,436.50 = 580,436.50 : x
2. Step 2: Convert to fraction form
   383,376/580,436.50 = 580,436.50/x
3. Step 3: Cross multiply
   383,376x = 580,436.50 × 580,436.50
4. Step 4: Simplify right side
   383,376x = 336,906,530,532.25
5. Step 5: Solve for x
   x = 336,906,530,532.25/383,376
6. Step 6: Final answer
   x = 878,788.79