Finding the Third Proportional to 40,302.56 and 85,406.27

Step by Step Solution

1. Step 1: Write the proportion equation
   40,302.56 : 85,406.27 = 85,406.27 : x
2. Step 2: Convert to fraction form
   40,302.56/85,406.27 = 85,406.27/x
3. Step 3: Cross multiply
   40,302.56x = 85,406.27 × 85,406.27
4. Step 4: Simplify right side
   40,302.56x = 7,294,231,542.48
5. Step 5: Solve for x
   x = 7,294,231,542.48/40,302.56
6. Step 6: Final answer
   x = 180,986.79