Finding the Third Proportional to 803,601 and 1,245,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   803,601 : 1,245,091.50 = 1,245,091.50 : x
2. Step 2: Convert to fraction form
   803,601/1,245,091.50 = 1,245,091.50/x
3. Step 3: Cross multiply
   803,601x = 1,245,091.50 × 1,245,091.50
4. Step 4: Simplify right side
   803,601x = 1,550,252,843,372.25
5. Step 5: Solve for x
   x = 1,550,252,843,372.25/803,601
6. Step 6: Final answer
   x = 1,929,132.55