Finding the Third Proportional to 15,130 and 17,908

Step by Step Solution

1. Step 1: Write the proportion equation
   15,130 : 17,908 = 17,908 : x
2. Step 2: Convert to fraction form
   15,130/17,908 = 17,908/x
3. Step 3: Cross multiply
   15,130x = 17,908 × 17,908
4. Step 4: Simplify right side
   15,130x = 320,696,464
5. Step 5: Solve for x
   x = 320,696,464/15,130
6. Step 6: Final answer
   x = 21,196.07