Finding the Third Proportional to 239,258.25 and 521,982

Step by Step Solution

1. Step 1: Write the proportion equation
   239,258.25 : 521,982 = 521,982 : x
2. Step 2: Convert to fraction form
   239,258.25/521,982 = 521,982/x
3. Step 3: Cross multiply
   239,258.25x = 521,982 × 521,982
4. Step 4: Simplify right side
   239,258.25x = 272,465,208,324
5. Step 5: Solve for x
   x = 272,465,208,324/239,258.25
6. Step 6: Final answer
   x = 1,138,791.28