Finding the Third Proportional to 4,790 and 10,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,790 : 10,308.50 = 10,308.50 : x
2. Step 2: Convert to fraction form
   4,790/10,308.50 = 10,308.50/x
3. Step 3: Cross multiply
   4,790x = 10,308.50 × 10,308.50
4. Step 4: Simplify right side
   4,790x = 106,265,172.25
5. Step 5: Solve for x
   x = 106,265,172.25/4,790
6. Step 6: Final answer
   x = 22,184.80