Finding the Third Proportional to 20,911.50 and 36,868.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,911.50 : 36,868.50 = 36,868.50 : x
2. Step 2: Convert to fraction form
   20,911.50/36,868.50 = 36,868.50/x
3. Step 3: Cross multiply
   20,911.50x = 36,868.50 × 36,868.50
4. Step 4: Simplify right side
   20,911.50x = 1,359,286,292.25
5. Step 5: Solve for x
   x = 1,359,286,292.25/20,911.50
6. Step 6: Final answer
   x = 65,001.86