Finding the Third Proportional to 338,655 and 740,277.75

Step by Step Solution

1. Step 1: Write the proportion equation
   338,655 : 740,277.75 = 740,277.75 : x
2. Step 2: Convert to fraction form
   338,655/740,277.75 = 740,277.75/x
3. Step 3: Cross multiply
   338,655x = 740,277.75 × 740,277.75
4. Step 4: Simplify right side
   338,655x = 548,011,147,145.06
5. Step 5: Solve for x
   x = 548,011,147,145.06/338,655
6. Step 6: Final answer
   x = 1,618,198.90