Finding the Third Proportional to 12,885.75 and 27,678.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,885.75 : 27,678.38 = 27,678.38 : x
2. Step 2: Convert to fraction form
   12,885.75/27,678.38 = 27,678.38/x
3. Step 3: Cross multiply
   12,885.75x = 27,678.38 × 27,678.38
4. Step 4: Simplify right side
   12,885.75x = 766,092,442.64
5. Step 5: Solve for x
   x = 766,092,442.64/12,885.75
6. Step 6: Final answer
   x = 59,452.69