Finding the Third Proportional to 12,300.16 and 19,581.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.16 : 19,581.53 = 19,581.53 : x
2. Step 2: Convert to fraction form
   12,300.16/19,581.53 = 19,581.53/x
3. Step 3: Cross multiply
   12,300.16x = 19,581.53 × 19,581.53
4. Step 4: Simplify right side
   12,300.16x = 383,436,366.09
5. Step 5: Solve for x
   x = 383,436,366.09/12,300.16
6. Step 6: Final answer
   x = 31,173.29