Finding the Third Proportional to 4,730.91 and 10,109.81

Step by Step Solution

1. Step 1: Write the proportion equation
   4,730.91 : 10,109.81 = 10,109.81 : x
2. Step 2: Convert to fraction form
   4,730.91/10,109.81 = 10,109.81/x
3. Step 3: Cross multiply
   4,730.91x = 10,109.81 × 10,109.81
4. Step 4: Simplify right side
   4,730.91x = 102,208,308.79
5. Step 5: Solve for x
   x = 102,208,308.79/4,730.91
6. Step 6: Final answer
   x = 21,604.38