Finding the Third Proportional to 19,800 and 30,090

Step by Step Solution

1. Step 1: Write the proportion equation
   19,800 : 30,090 = 30,090 : x
2. Step 2: Convert to fraction form
   19,800/30,090 = 30,090/x
3. Step 3: Cross multiply
   19,800x = 30,090 × 30,090
4. Step 4: Simplify right side
   19,800x = 905,408,100
5. Step 5: Solve for x
   x = 905,408,100/19,800
6. Step 6: Final answer
   x = 45,727.68