Finding the Third Proportional to 4,719 and 10,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,719 : 10,009.50 = 10,009.50 : x
2. Step 2: Convert to fraction form
   4,719/10,009.50 = 10,009.50/x
3. Step 3: Cross multiply
   4,719x = 10,009.50 × 10,009.50
4. Step 4: Simplify right side
   4,719x = 100,190,090.25
5. Step 5: Solve for x
   x = 100,190,090.25/4,719
6. Step 6: Final answer
   x = 21,231.21