Finding the Third Proportional to 12,998.25 and 20,667.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,998.25 : 20,667.38 = 20,667.38 : x
2. Step 2: Convert to fraction form
   12,998.25/20,667.38 = 20,667.38/x
3. Step 3: Cross multiply
   12,998.25x = 20,667.38 × 20,667.38
4. Step 4: Simplify right side
   12,998.25x = 427,140,389.39
5. Step 5: Solve for x
   x = 427,140,389.39/12,998.25
6. Step 6: Final answer
   x = 32,861.38