Finding the Third Proportional to 505,606 and 789,514

Step by Step Solution

1. Step 1: Write the proportion equation
   505,606 : 789,514 = 789,514 : x
2. Step 2: Convert to fraction form
   505,606/789,514 = 789,514/x
3. Step 3: Cross multiply
   505,606x = 789,514 × 789,514
4. Step 4: Simplify right side
   505,606x = 623,332,356,196
5. Step 5: Solve for x
   x = 623,332,356,196/505,606
6. Step 6: Final answer
   x = 1,232,842.09