Finding the Third Proportional to 51,403.50 and 76,678.88

Step by Step Solution

1. Step 1: Write the proportion equation
   51,403.50 : 76,678.88 = 76,678.88 : x
2. Step 2: Convert to fraction form
   51,403.50/76,678.88 = 76,678.88/x
3. Step 3: Cross multiply
   51,403.50x = 76,678.88 × 76,678.88
4. Step 4: Simplify right side
   51,403.50x = 5,879,649,871.27
5. Step 5: Solve for x
   x = 5,879,649,871.27/51,403.50
6. Step 6: Final answer
   x = 114,382.29