Finding the Third Proportional to 20,909 and 45,706

Step by Step Solution

1. Step 1: Write the proportion equation
   20,909 : 45,706 = 45,706 : x
2. Step 2: Convert to fraction form
   20,909/45,706 = 45,706/x
3. Step 3: Cross multiply
   20,909x = 45,706 × 45,706
4. Step 4: Simplify right side
   20,909x = 2,089,038,436
5. Step 5: Solve for x
   x = 2,089,038,436/20,909
6. Step 6: Final answer
   x = 99,910.97