Finding the Third Proportional to 30,667.50 and 43,489.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,667.50 : 43,489.50 = 43,489.50 : x
2. Step 2: Convert to fraction form
   30,667.50/43,489.50 = 43,489.50/x
3. Step 3: Cross multiply
   30,667.50x = 43,489.50 × 43,489.50
4. Step 4: Simplify right side
   30,667.50x = 1,891,336,610.25
5. Step 5: Solve for x
   x = 1,891,336,610.25/30,667.50
6. Step 6: Final answer
   x = 61,672.34