Finding the Third Proportional to 30,628.13 and 45,658.69

Step by Step Solution

1. Step 1: Write the proportion equation
   30,628.13 : 45,658.69 = 45,658.69 : x
2. Step 2: Convert to fraction form
   30,628.13/45,658.69 = 45,658.69/x
3. Step 3: Cross multiply
   30,628.13x = 45,658.69 × 45,658.69
4. Step 4: Simplify right side
   30,628.13x = 2,084,715,744.22
5. Step 5: Solve for x
   x = 2,084,715,744.22/30,628.13
6. Step 6: Final answer
   x = 68,065.41