Finding the Third Proportional to 13,722.75 and 30,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,722.75 : 30,118.50 = 30,118.50 : x
2. Step 2: Convert to fraction form
   13,722.75/30,118.50 = 30,118.50/x
3. Step 3: Cross multiply
   13,722.75x = 30,118.50 × 30,118.50
4. Step 4: Simplify right side
   13,722.75x = 907,124,042.25
5. Step 5: Solve for x
   x = 907,124,042.25/13,722.75
6. Step 6: Final answer
   x = 66,103.66