Finding the Third Proportional to 40,769.58 and 57,412.55

Step by Step Solution

1. Step 1: Write the proportion equation
   40,769.58 : 57,412.55 = 57,412.55 : x
2. Step 2: Convert to fraction form
   40,769.58/57,412.55 = 57,412.55/x
3. Step 3: Cross multiply
   40,769.58x = 57,412.55 × 57,412.55
4. Step 4: Simplify right side
   40,769.58x = 3,296,200,538.67
5. Step 5: Solve for x
   x = 3,296,200,538.67/40,769.58
6. Step 6: Final answer
   x = 80,849.51