Finding the Third Proportional to 13,156.17 and 20,913.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,156.17 : 20,913.19 = 20,913.19 : x
2. Step 2: Convert to fraction form
   13,156.17/20,913.19 = 20,913.19/x
3. Step 3: Cross multiply
   13,156.17x = 20,913.19 × 20,913.19
4. Step 4: Simplify right side
   13,156.17x = 437,361,411.41
5. Step 5: Solve for x
   x = 437,361,411.41/13,156.17
6. Step 6: Final answer
   x = 33,243.82