Finding the Third Proportional to 603,601.50 and 1,256,788.50

Step by Step Solution

1. Step 1: Write the proportion equation
   603,601.50 : 1,256,788.50 = 1,256,788.50 : x
2. Step 2: Convert to fraction form
   603,601.50/1,256,788.50 = 1,256,788.50/x
3. Step 3: Cross multiply
   603,601.50x = 1,256,788.50 × 1,256,788.50
4. Step 4: Simplify right side
   603,601.50x = 1,579,517,333,732.25
5. Step 5: Solve for x
   x = 1,579,517,333,732.25/603,601.50
6. Step 6: Final answer
   x = 2,616,821.42