Finding the Third Proportional to 13,889.25 and 30,480.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,889.25 : 30,480.75 = 30,480.75 : x
2. Step 2: Convert to fraction form
   13,889.25/30,480.75 = 30,480.75/x
3. Step 3: Cross multiply
   13,889.25x = 30,480.75 × 30,480.75
4. Step 4: Simplify right side
   13,889.25x = 929,076,120.56
5. Step 5: Solve for x
   x = 929,076,120.56/13,889.25
6. Step 6: Final answer
   x = 66,891.74