Finding the Third Proportional to 30,788.81 and 66,182.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,788.81 : 66,182.06 = 66,182.06 : x
2. Step 2: Convert to fraction form
   30,788.81/66,182.06 = 66,182.06/x
3. Step 3: Cross multiply
   30,788.81x = 66,182.06 × 66,182.06
4. Step 4: Simplify right side
   30,788.81x = 4,380,065,396.75
5. Step 5: Solve for x
   x = 4,380,065,396.75/30,788.81
6. Step 6: Final answer
   x = 142,261.59