Finding the Third Proportional to 30,914.16 and 66,589.59

Step by Step Solution

1. Step 1: Write the proportion equation
   30,914.16 : 66,589.59 = 66,589.59 : x
2. Step 2: Convert to fraction form
   30,914.16/66,589.59 = 66,589.59/x
3. Step 3: Cross multiply
   30,914.16x = 66,589.59 × 66,589.59
4. Step 4: Simplify right side
   30,914.16x = 4,434,173,995.79
5. Step 5: Solve for x
   x = 4,434,173,995.79/30,914.16
6. Step 6: Final answer
   x = 143,435.06