Finding the Third Proportional to 17,910 and 38,992

Step by Step Solution

1. Step 1: Write the proportion equation
   17,910 : 38,992 = 38,992 : x
2. Step 2: Convert to fraction form
   17,910/38,992 = 38,992/x
3. Step 3: Cross multiply
   17,910x = 38,992 × 38,992
4. Step 4: Simplify right side
   17,910x = 1,520,376,064
5. Step 5: Solve for x
   x = 1,520,376,064/17,910
6. Step 6: Final answer
   x = 84,889.79