Finding the Third Proportional to 21,849.75 and 40,646.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,849.75 : 40,646.81 = 40,646.81 : x
2. Step 2: Convert to fraction form
   21,849.75/40,646.81 = 40,646.81/x
3. Step 3: Cross multiply
   21,849.75x = 40,646.81 × 40,646.81
4. Step 4: Simplify right side
   21,849.75x = 1,652,163,366.41
5. Step 5: Solve for x
   x = 1,652,163,366.41/21,849.75
6. Step 6: Final answer
   x = 75,614.75