Finding the Third Proportional to 40,564.88 and 60,509.81

Step by Step Solution

1. Step 1: Write the proportion equation
   40,564.88 : 60,509.81 = 60,509.81 : x
2. Step 2: Convert to fraction form
   40,564.88/60,509.81 = 60,509.81/x
3. Step 3: Cross multiply
   40,564.88x = 60,509.81 × 60,509.81
4. Step 4: Simplify right side
   40,564.88x = 3,661,437,408.79
5. Step 5: Solve for x
   x = 3,661,437,408.79/40,564.88
6. Step 6: Final answer
   x = 90,261.28