Finding the Third Proportional to 301,139 and 654,766

Step by Step Solution

1. Step 1: Write the proportion equation
   301,139 : 654,766 = 654,766 : x
2. Step 2: Convert to fraction form
   301,139/654,766 = 654,766/x
3. Step 3: Cross multiply
   301,139x = 654,766 × 654,766
4. Step 4: Simplify right side
   301,139x = 428,718,514,756
5. Step 5: Solve for x
   x = 428,718,514,756/301,139
6. Step 6: Final answer
   x = 1,423,656.57