Finding the Third Proportional to 12,740 and 27,928

Step by Step Solution

1. Step 1: Write the proportion equation
   12,740 : 27,928 = 27,928 : x
2. Step 2: Convert to fraction form
   12,740/27,928 = 27,928/x
3. Step 3: Cross multiply
   12,740x = 27,928 × 27,928
4. Step 4: Simplify right side
   12,740x = 779,973,184
5. Step 5: Solve for x
   x = 779,973,184/12,740
6. Step 6: Final answer
   x = 61,222.38