Finding the Third Proportional to 548,164 and 1,320,588

Step by Step Solution

1. Step 1: Write the proportion equation
   548,164 : 1,320,588 = 1,320,588 : x
2. Step 2: Convert to fraction form
   548,164/1,320,588 = 1,320,588/x
3. Step 3: Cross multiply
   548,164x = 1,320,588 × 1,320,588
4. Step 4: Simplify right side
   548,164x = 1,743,952,665,744
5. Step 5: Solve for x
   x = 1,743,952,665,744/548,164
6. Step 6: Final answer
   x = 3,181,443.26