Finding the Third Proportional to 51,081.75 and 76,692.38

Step by Step Solution

1. Step 1: Write the proportion equation
   51,081.75 : 76,692.38 = 76,692.38 : x
2. Step 2: Convert to fraction form
   51,081.75/76,692.38 = 76,692.38/x
3. Step 3: Cross multiply
   51,081.75x = 76,692.38 × 76,692.38
4. Step 4: Simplify right side
   51,081.75x = 5,881,720,383.14
5. Step 5: Solve for x
   x = 5,881,720,383.14/51,081.75
6. Step 6: Final answer
   x = 115,143.28