Finding the Third Proportional to 20,581.50 and 45,447

Step by Step Solution

1. Step 1: Write the proportion equation
   20,581.50 : 45,447 = 45,447 : x
2. Step 2: Convert to fraction form
   20,581.50/45,447 = 45,447/x
3. Step 3: Cross multiply
   20,581.50x = 45,447 × 45,447
4. Step 4: Simplify right side
   20,581.50x = 2,065,429,809
5. Step 5: Solve for x
   x = 2,065,429,809/20,581.50
6. Step 6: Final answer
   x = 100,353.71