Finding the Third Proportional to 51,693.75 and 79,788.38

Step by Step Solution

1. Step 1: Write the proportion equation
   51,693.75 : 79,788.38 = 79,788.38 : x
2. Step 2: Convert to fraction form
   51,693.75/79,788.38 = 79,788.38/x
3. Step 3: Cross multiply
   51,693.75x = 79,788.38 × 79,788.38
4. Step 4: Simplify right side
   51,693.75x = 6,366,184,785.14
5. Step 5: Solve for x
   x = 6,366,184,785.14/51,693.75
6. Step 6: Final answer
   x = 123,151.92