Finding the Third Proportional to 13,943.81 and 30,425.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,943.81 : 30,425.63 = 30,425.63 : x
2. Step 2: Convert to fraction form
   13,943.81/30,425.63 = 30,425.63/x
3. Step 3: Cross multiply
   13,943.81x = 30,425.63 × 30,425.63
4. Step 4: Simplify right side
   13,943.81x = 925,718,656.64
5. Step 5: Solve for x
   x = 925,718,656.64/13,943.81
6. Step 6: Final answer
   x = 66,389.21