Finding the Third Proportional to 123,869.25 and 270,216

Step by Step Solution

1. Step 1: Write the proportion equation
   123,869.25 : 270,216 = 270,216 : x
2. Step 2: Convert to fraction form
   123,869.25/270,216 = 270,216/x
3. Step 3: Cross multiply
   123,869.25x = 270,216 × 270,216
4. Step 4: Simplify right side
   123,869.25x = 73,016,686,656
5. Step 5: Solve for x
   x = 73,016,686,656/123,869.25
6. Step 6: Final answer
   x = 589,465.80