Finding the Third Proportional to 20,308 and 30,858

Step by Step Solution

1. Step 1: Write the proportion equation
   20,308 : 30,858 = 30,858 : x
2. Step 2: Convert to fraction form
   20,308/30,858 = 30,858/x
3. Step 3: Cross multiply
   20,308x = 30,858 × 30,858
4. Step 4: Simplify right side
   20,308x = 952,216,164
5. Step 5: Solve for x
   x = 952,216,164/20,308
6. Step 6: Final answer
   x = 46,888.72