Finding the Third Proportional to 30,802.22 and 66,205.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,802.22 : 66,205.69 = 66,205.69 : x
2. Step 2: Convert to fraction form
   30,802.22/66,205.69 = 66,205.69/x
3. Step 3: Cross multiply
   30,802.22x = 66,205.69 × 66,205.69
4. Step 4: Simplify right side
   30,802.22x = 4,383,193,057.35
5. Step 5: Solve for x
   x = 4,383,193,057.35/30,802.22
6. Step 6: Final answer
   x = 142,301.21