Finding the Third Proportional to 6,290 and 13,789

Step by Step Solution

1. Step 1: Write the proportion equation
   6,290 : 13,789 = 13,789 : x
2. Step 2: Convert to fraction form
   6,290/13,789 = 13,789/x
3. Step 3: Cross multiply
   6,290x = 13,789 × 13,789
4. Step 4: Simplify right side
   6,290x = 190,136,521
5. Step 5: Solve for x
   x = 190,136,521/6,290
6. Step 6: Final answer
   x = 30,228.38