Finding the Third Proportional to 11,122.95 and 12,609.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,122.95 : 12,609.42 = 12,609.42 : x
2. Step 2: Convert to fraction form
   11,122.95/12,609.42 = 12,609.42/x
3. Step 3: Cross multiply
   11,122.95x = 12,609.42 × 12,609.42
4. Step 4: Simplify right side
   11,122.95x = 158,997,520.02
5. Step 5: Solve for x
   x = 158,997,520.02/11,122.95
6. Step 6: Final answer
   x = 14,294.55