Finding the Third Proportional to 12,487.50 and 26,129.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,487.50 : 26,129.38 = 26,129.38 : x
2. Step 2: Convert to fraction form
   12,487.50/26,129.38 = 26,129.38/x
3. Step 3: Cross multiply
   12,487.50x = 26,129.38 × 26,129.38
4. Step 4: Simplify right side
   12,487.50x = 682,744,237.89
5. Step 5: Solve for x
   x = 682,744,237.89/12,487.50
6. Step 6: Final answer
   x = 54,674.21