Finding the Third Proportional to 13,018.50 and 30,723.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,018.50 : 30,723.75 = 30,723.75 : x
2. Step 2: Convert to fraction form
   13,018.50/30,723.75 = 30,723.75/x
3. Step 3: Cross multiply
   13,018.50x = 30,723.75 × 30,723.75
4. Step 4: Simplify right side
   13,018.50x = 943,948,814.06
5. Step 5: Solve for x
   x = 943,948,814.06/13,018.50
6. Step 6: Final answer
   x = 72,508.26