Finding the Third Proportional to 519,680 and 1,138,666

Step by Step Solution

1. Step 1: Write the proportion equation
   519,680 : 1,138,666 = 1,138,666 : x
2. Step 2: Convert to fraction form
   519,680/1,138,666 = 1,138,666/x
3. Step 3: Cross multiply
   519,680x = 1,138,666 × 1,138,666
4. Step 4: Simplify right side
   519,680x = 1,296,560,259,556
5. Step 5: Solve for x
   x = 1,296,560,259,556/519,680
6. Step 6: Final answer
   x = 2,494,920.45