Finding the Third Proportional to 13,113 and 20,774

Step by Step Solution

1. Step 1: Write the proportion equation
   13,113 : 20,774 = 20,774 : x
2. Step 2: Convert to fraction form
   13,113/20,774 = 20,774/x
3. Step 3: Cross multiply
   13,113x = 20,774 × 20,774
4. Step 4: Simplify right side
   13,113x = 431,559,076
5. Step 5: Solve for x
   x = 431,559,076/13,113
6. Step 6: Final answer
   x = 32,910.78