Finding the Third Proportional to 20,691.07 and 30,489.86

Step by Step Solution

1. Step 1: Write the proportion equation
   20,691.07 : 30,489.86 = 30,489.86 : x
2. Step 2: Convert to fraction form
   20,691.07/30,489.86 = 30,489.86/x
3. Step 3: Cross multiply
   20,691.07x = 30,489.86 × 30,489.86
4. Step 4: Simplify right side
   20,691.07x = 929,631,286.51
5. Step 5: Solve for x
   x = 929,631,286.51/20,691.07
6. Step 6: Final answer
   x = 44,929.11