Finding the Third Proportional to 20,788.50 and 45,618

Step by Step Solution

1. Step 1: Write the proportion equation
   20,788.50 : 45,618 = 45,618 : x
2. Step 2: Convert to fraction form
   20,788.50/45,618 = 45,618/x
3. Step 3: Cross multiply
   20,788.50x = 45,618 × 45,618
4. Step 4: Simplify right side
   20,788.50x = 2,081,001,924
5. Step 5: Solve for x
   x = 2,081,001,924/20,788.50
6. Step 6: Final answer
   x = 100,103.52