Finding the Third Proportional to 40,479.75 and 85,561.31

Step by Step Solution

1. Step 1: Write the proportion equation
   40,479.75 : 85,561.31 = 85,561.31 : x
2. Step 2: Convert to fraction form
   40,479.75/85,561.31 = 85,561.31/x
3. Step 3: Cross multiply
   40,479.75x = 85,561.31 × 85,561.31
4. Step 4: Simplify right side
   40,479.75x = 7,320,738,196.72
5. Step 5: Solve for x
   x = 7,320,738,196.72/40,479.75
6. Step 6: Final answer
   x = 180,849.39