Finding the Third Proportional to 19,707.21 and 30,599.49

Step by Step Solution

1. Step 1: Write the proportion equation
   19,707.21 : 30,599.49 = 30,599.49 : x
2. Step 2: Convert to fraction form
   19,707.21/30,599.49 = 30,599.49/x
3. Step 3: Cross multiply
   19,707.21x = 30,599.49 × 30,599.49
4. Step 4: Simplify right side
   19,707.21x = 936,328,802.60
5. Step 5: Solve for x
   x = 936,328,802.60/19,707.21
6. Step 6: Final answer
   x = 47,512.00