Finding the Third Proportional to 13,857.19 and 30,397.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,857.19 : 30,397.22 = 30,397.22 : x
2. Step 2: Convert to fraction form
   13,857.19/30,397.22 = 30,397.22/x
3. Step 3: Cross multiply
   13,857.19x = 30,397.22 × 30,397.22
4. Step 4: Simplify right side
   13,857.19x = 923,990,907.74
5. Step 5: Solve for x
   x = 923,990,907.74/13,857.19
6. Step 6: Final answer
   x = 66,679.54