Finding the Third Proportional to 12,679.90 and 27,269.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,679.90 : 27,269.16 = 27,269.16 : x
2. Step 2: Convert to fraction form
   12,679.90/27,269.16 = 27,269.16/x
3. Step 3: Cross multiply
   12,679.90x = 27,269.16 × 27,269.16
4. Step 4: Simplify right side
   12,679.90x = 743,606,882.59
5. Step 5: Solve for x
   x = 743,606,882.59/12,679.90
6. Step 6: Final answer
   x = 58,644.53