Finding the Third Proportional to 9,058.50 and 12,189.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,058.50 : 12,189.38 = 12,189.38 : x
2. Step 2: Convert to fraction form
   9,058.50/12,189.38 = 12,189.38/x
3. Step 3: Cross multiply
   9,058.50x = 12,189.38 × 12,189.38
4. Step 4: Simplify right side
   9,058.50x = 148,580,862.89
5. Step 5: Solve for x
   x = 148,580,862.89/9,058.50
6. Step 6: Final answer
   x = 16,402.37