Finding the Third Proportional to 30,057.75 and 64,882.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,057.75 : 64,882.69 = 64,882.69 : x
2. Step 2: Convert to fraction form
   30,057.75/64,882.69 = 64,882.69/x
3. Step 3: Cross multiply
   30,057.75x = 64,882.69 × 64,882.69
4. Step 4: Simplify right side
   30,057.75x = 4,209,763,137.22
5. Step 5: Solve for x
   x = 4,209,763,137.22/30,057.75
6. Step 6: Final answer
   x = 140,055.83