Finding the Third Proportional to 5,436 and 12,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,436 : 12,622.50 = 12,622.50 : x
2. Step 2: Convert to fraction form
   5,436/12,622.50 = 12,622.50/x
3. Step 3: Cross multiply
   5,436x = 12,622.50 × 12,622.50
4. Step 4: Simplify right side
   5,436x = 159,327,506.25
5. Step 5: Solve for x
   x = 159,327,506.25/5,436
6. Step 6: Final answer
   x = 29,309.70