Finding the Third Proportional to 646,798.50 and 1,360,626

Step by Step Solution

1. Step 1: Write the proportion equation
   646,798.50 : 1,360,626 = 1,360,626 : x
2. Step 2: Convert to fraction form
   646,798.50/1,360,626 = 1,360,626/x
3. Step 3: Cross multiply
   646,798.50x = 1,360,626 × 1,360,626
4. Step 4: Simplify right side
   646,798.50x = 1,851,303,111,876
5. Step 5: Solve for x
   x = 1,851,303,111,876/646,798.50
6. Step 6: Final answer
   x = 2,862,256.35