Finding the Third Proportional to 30,811.50 and 43,647.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,811.50 : 43,647.75 = 43,647.75 : x
2. Step 2: Convert to fraction form
   30,811.50/43,647.75 = 43,647.75/x
3. Step 3: Cross multiply
   30,811.50x = 43,647.75 × 43,647.75
4. Step 4: Simplify right side
   30,811.50x = 1,905,126,080.06
5. Step 5: Solve for x
   x = 1,905,126,080.06/30,811.50
6. Step 6: Final answer
   x = 61,831.66