Finding the Third Proportional to 59,984.50 and 138,867

Step by Step Solution

1. Step 1: Write the proportion equation
   59,984.50 : 138,867 = 138,867 : x
2. Step 2: Convert to fraction form
   59,984.50/138,867 = 138,867/x
3. Step 3: Cross multiply
   59,984.50x = 138,867 × 138,867
4. Step 4: Simplify right side
   59,984.50x = 19,284,043,689
5. Step 5: Solve for x
   x = 19,284,043,689/59,984.50
6. Step 6: Final answer
   x = 321,483.78