Finding the Third Proportional to 19,620 and 30,018

Step by Step Solution

1. Step 1: Write the proportion equation
   19,620 : 30,018 = 30,018 : x
2. Step 2: Convert to fraction form
   19,620/30,018 = 30,018/x
3. Step 3: Cross multiply
   19,620x = 30,018 × 30,018
4. Step 4: Simplify right side
   19,620x = 901,080,324
5. Step 5: Solve for x
   x = 901,080,324/19,620
6. Step 6: Final answer
   x = 45,926.62