Finding the Third Proportional to 13,836 and 30,360

Step by Step Solution

1. Step 1: Write the proportion equation
   13,836 : 30,360 = 30,360 : x
2. Step 2: Convert to fraction form
   13,836/30,360 = 30,360/x
3. Step 3: Cross multiply
   13,836x = 30,360 × 30,360
4. Step 4: Simplify right side
   13,836x = 921,729,600
5. Step 5: Solve for x
   x = 921,729,600/13,836
6. Step 6: Final answer
   x = 66,618.21