Finding the Third Proportional to 803,599.50 and 1,245,090

Step by Step Solution

1. Step 1: Write the proportion equation
   803,599.50 : 1,245,090 = 1,245,090 : x
2. Step 2: Convert to fraction form
   803,599.50/1,245,090 = 1,245,090/x
3. Step 3: Cross multiply
   803,599.50x = 1,245,090 × 1,245,090
4. Step 4: Simplify right side
   803,599.50x = 1,550,249,108,100
5. Step 5: Solve for x
   x = 1,550,249,108,100/803,599.50
6. Step 6: Final answer
   x = 1,929,131.50