Finding the Third Proportional to 51,814.69 and 76,021.88

Step by Step Solution

1. Step 1: Write the proportion equation
   51,814.69 : 76,021.88 = 76,021.88 : x
2. Step 2: Convert to fraction form
   51,814.69/76,021.88 = 76,021.88/x
3. Step 3: Cross multiply
   51,814.69x = 76,021.88 × 76,021.88
4. Step 4: Simplify right side
   51,814.69x = 5,779,325,478.52
5. Step 5: Solve for x
   x = 5,779,325,478.52/51,814.69
6. Step 6: Final answer
   x = 111,538.36