Finding the Third Proportional to 14,272 and 30,872

Step by Step Solution

1. Step 1: Write the proportion equation
   14,272 : 30,872 = 30,872 : x
2. Step 2: Convert to fraction form
   14,272/30,872 = 30,872/x
3. Step 3: Cross multiply
   14,272x = 30,872 × 30,872
4. Step 4: Simplify right side
   14,272x = 953,080,384
5. Step 5: Solve for x
   x = 953,080,384/14,272
6. Step 6: Final answer
   x = 66,779.74