Finding the Third Proportional to 58,017 and 123,621

Step by Step Solution

1. Step 1: Write the proportion equation
   58,017 : 123,621 = 123,621 : x
2. Step 2: Convert to fraction form
   58,017/123,621 = 123,621/x
3. Step 3: Cross multiply
   58,017x = 123,621 × 123,621
4. Step 4: Simplify right side
   58,017x = 15,282,151,641
5. Step 5: Solve for x
   x = 15,282,151,641/58,017
6. Step 6: Final answer
   x = 263,408.17