Finding the Third Proportional to 9,618 and 20,875.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,618 : 20,875.50 = 20,875.50 : x
2. Step 2: Convert to fraction form
   9,618/20,875.50 = 20,875.50/x
3. Step 3: Cross multiply
   9,618x = 20,875.50 × 20,875.50
4. Step 4: Simplify right side
   9,618x = 435,786,500.25
5. Step 5: Solve for x
   x = 435,786,500.25/9,618
6. Step 6: Final answer
   x = 45,309.47