Finding the Third Proportional to 13,018 and 30,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018 : 30,698.50 = 30,698.50 : x
2. Step 2: Convert to fraction form
   13,018/30,698.50 = 30,698.50/x
3. Step 3: Cross multiply
   13,018x = 30,698.50 × 30,698.50
4. Step 4: Simplify right side
   13,018x = 942,397,902.25
5. Step 5: Solve for x
   x = 942,397,902.25/13,018
6. Step 6: Final answer
   x = 72,391.91