Finding the Third Proportional to 5,490.56 and 12,074.63

Step by Step Solution

1. Step 1: Write the proportion equation
   5,490.56 : 12,074.63 = 12,074.63 : x
2. Step 2: Convert to fraction form
   5,490.56/12,074.63 = 12,074.63/x
3. Step 3: Cross multiply
   5,490.56x = 12,074.63 × 12,074.63
4. Step 4: Simplify right side
   5,490.56x = 145,796,568.89
5. Step 5: Solve for x
   x = 145,796,568.89/5,490.56
6. Step 6: Final answer
   x = 26,554.03