Finding the Third Proportional to 13,158 and 17,071.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,158 : 17,071.88 = 17,071.88 : x
2. Step 2: Convert to fraction form
   13,158/17,071.88 = 17,071.88/x
3. Step 3: Cross multiply
   13,158x = 17,071.88 × 17,071.88
4. Step 4: Simplify right side
   13,158x = 291,448,916.02
5. Step 5: Solve for x
   x = 291,448,916.02/13,158
6. Step 6: Final answer
   x = 22,149.94