Finding the Third Proportional to 13,460 and 17,790

Step by Step Solution

1. Step 1: Write the proportion equation
   13,460 : 17,790 = 17,790 : x
2. Step 2: Convert to fraction form
   13,460/17,790 = 17,790/x
3. Step 3: Cross multiply
   13,460x = 17,790 × 17,790
4. Step 4: Simplify right side
   13,460x = 316,484,100
5. Step 5: Solve for x
   x = 316,484,100/13,460
6. Step 6: Final answer
   x = 23,512.93