Finding the Third Proportional to 388,287 and 795,389.63

Step by Step Solution

1. Step 1: Write the proportion equation
   388,287 : 795,389.63 = 795,389.63 : x
2. Step 2: Convert to fraction form
   388,287/795,389.63 = 795,389.63/x
3. Step 3: Cross multiply
   388,287x = 795,389.63 × 795,389.63
4. Step 4: Simplify right side
   388,287x = 632,644,655,557.64
5. Step 5: Solve for x
   x = 632,644,655,557.64/388,287
6. Step 6: Final answer
   x = 1,629,322.27