Finding the Third Proportional to 515,183.50 and 788,074

Step by Step Solution

1. Step 1: Write the proportion equation
   515,183.50 : 788,074 = 788,074 : x
2. Step 2: Convert to fraction form
   515,183.50/788,074 = 788,074/x
3. Step 3: Cross multiply
   515,183.50x = 788,074 × 788,074
4. Step 4: Simplify right side
   515,183.50x = 621,060,629,476
5. Step 5: Solve for x
   x = 621,060,629,476/515,183.50
6. Step 6: Final answer
   x = 1,205,513.43