Finding the Third Proportional to 21,885.19 and 28,469.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,885.19 : 28,469.81 = 28,469.81 : x
2. Step 2: Convert to fraction form
   21,885.19/28,469.81 = 28,469.81/x
3. Step 3: Cross multiply
   21,885.19x = 28,469.81 × 28,469.81
4. Step 4: Simplify right side
   21,885.19x = 810,530,223.79
5. Step 5: Solve for x
   x = 810,530,223.79/21,885.19
6. Step 6: Final answer
   x = 37,035.56