Finding the Third Proportional to 20,809.88 and 45,861.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,809.88 : 45,861.75 = 45,861.75 : x
2. Step 2: Convert to fraction form
   20,809.88/45,861.75 = 45,861.75/x
3. Step 3: Cross multiply
   20,809.88x = 45,861.75 × 45,861.75
4. Step 4: Simplify right side
   20,809.88x = 2,103,300,113.06
5. Step 5: Solve for x
   x = 2,103,300,113.06/20,809.88
6. Step 6: Final answer
   x = 101,072.21