Finding the Third Proportional to 13,834.55 and 20,916.35

Step by Step Solution

1. Step 1: Write the proportion equation
   13,834.55 : 20,916.35 = 20,916.35 : x
2. Step 2: Convert to fraction form
   13,834.55/20,916.35 = 20,916.35/x
3. Step 3: Cross multiply
   13,834.55x = 20,916.35 × 20,916.35
4. Step 4: Simplify right side
   13,834.55x = 437,493,762.69
5. Step 5: Solve for x
   x = 437,493,762.69/13,834.55
6. Step 6: Final answer
   x = 31,623.28