Finding the Third Proportional to 13,780 and 30,018

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780 : 30,018 = 30,018 : x
2. Step 2: Convert to fraction form
   13,780/30,018 = 30,018/x
3. Step 3: Cross multiply
   13,780x = 30,018 × 30,018
4. Step 4: Simplify right side
   13,780x = 901,080,324
5. Step 5: Solve for x
   x = 901,080,324/13,780
6. Step 6: Final answer
   x = 65,390.44