Finding the Third Proportional to 20,860.50 and 43,446.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,860.50 : 43,446.75 = 43,446.75 : x
2. Step 2: Convert to fraction form
   20,860.50/43,446.75 = 43,446.75/x
3. Step 3: Cross multiply
   20,860.50x = 43,446.75 × 43,446.75
4. Step 4: Simplify right side
   20,860.50x = 1,887,620,085.56
5. Step 5: Solve for x
   x = 1,887,620,085.56/20,860.50
6. Step 6: Final answer
   x = 90,487.77