Finding the Third Proportional to 13,000.75 and 30,679.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,000.75 : 30,679.38 = 30,679.38 : x
2. Step 2: Convert to fraction form
   13,000.75/30,679.38 = 30,679.38/x
3. Step 3: Cross multiply
   13,000.75x = 30,679.38 × 30,679.38
4. Step 4: Simplify right side
   13,000.75x = 941,224,050.39
5. Step 5: Solve for x
   x = 941,224,050.39/13,000.75
6. Step 6: Final answer
   x = 72,397.67