Finding the Third Proportional to 13,887 and 28,290

Step by Step Solution

1. Step 1: Write the proportion equation
   13,887 : 28,290 = 28,290 : x
2. Step 2: Convert to fraction form
   13,887/28,290 = 28,290/x
3. Step 3: Cross multiply
   13,887x = 28,290 × 28,290
4. Step 4: Simplify right side
   13,887x = 800,324,100
5. Step 5: Solve for x
   x = 800,324,100/13,887
6. Step 6: Final answer
   x = 57,631.17