Finding the Third Proportional to 51,404.47 and 76,678.84

Step by Step Solution

1. Step 1: Write the proportion equation
   51,404.47 : 76,678.84 = 76,678.84 : x
2. Step 2: Convert to fraction form
   51,404.47/76,678.84 = 76,678.84/x
3. Step 3: Cross multiply
   51,404.47x = 76,678.84 × 76,678.84
4. Step 4: Simplify right side
   51,404.47x = 5,879,644,479.78
5. Step 5: Solve for x
   x = 5,879,644,479.78/51,404.47
6. Step 6: Final answer
   x = 114,380.03