Finding the Third Proportional to 20,778 and 45,710

Step by Step Solution

1. Step 1: Write the proportion equation
   20,778 : 45,710 = 45,710 : x
2. Step 2: Convert to fraction form
   20,778/45,710 = 45,710/x
3. Step 3: Cross multiply
   20,778x = 45,710 × 45,710
4. Step 4: Simplify right side
   20,778x = 2,089,404,100
5. Step 5: Solve for x
   x = 2,089,404,100/20,778
6. Step 6: Final answer
   x = 100,558.48