Finding the Third Proportional to 580,085.50 and 1,245,859

Step by Step Solution

1. Step 1: Write the proportion equation
   580,085.50 : 1,245,859 = 1,245,859 : x
2. Step 2: Convert to fraction form
   580,085.50/1,245,859 = 1,245,859/x
3. Step 3: Cross multiply
   580,085.50x = 1,245,859 × 1,245,859
4. Step 4: Simplify right side
   580,085.50x = 1,552,164,647,881
5. Step 5: Solve for x
   x = 1,552,164,647,881/580,085.50
6. Step 6: Final answer
   x = 2,675,751.50