Finding the Third Proportional to 20,160 and 30,260

Step by Step Solution

1. Step 1: Write the proportion equation
   20,160 : 30,260 = 30,260 : x
2. Step 2: Convert to fraction form
   20,160/30,260 = 30,260/x
3. Step 3: Cross multiply
   20,160x = 30,260 × 30,260
4. Step 4: Simplify right side
   20,160x = 915,667,600
5. Step 5: Solve for x
   x = 915,667,600/20,160
6. Step 6: Final answer
   x = 45,420.02