Finding the Third Proportional to 27,766.69 and 39,678.75

Step by Step Solution

1. Step 1: Write the proportion equation
   27,766.69 : 39,678.75 = 39,678.75 : x
2. Step 2: Convert to fraction form
   27,766.69/39,678.75 = 39,678.75/x
3. Step 3: Cross multiply
   27,766.69x = 39,678.75 × 39,678.75
4. Step 4: Simplify right side
   27,766.69x = 1,574,403,201.56
5. Step 5: Solve for x
   x = 1,574,403,201.56/27,766.69
6. Step 6: Final answer
   x = 56,701.15