Finding the Third Proportional to 13,582.81 and 20,777.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,582.81 : 20,777.94 = 20,777.94 : x
2. Step 2: Convert to fraction form
   13,582.81/20,777.94 = 20,777.94/x
3. Step 3: Cross multiply
   13,582.81x = 20,777.94 × 20,777.94
4. Step 4: Simplify right side
   13,582.81x = 431,722,686.75
5. Step 5: Solve for x
   x = 431,722,686.75/13,582.81
6. Step 6: Final answer
   x = 31,784.48