Finding the Third Proportional to 30,055 and 64,279

Step by Step Solution

1. Step 1: Write the proportion equation
   30,055 : 64,279 = 64,279 : x
2. Step 2: Convert to fraction form
   30,055/64,279 = 64,279/x
3. Step 3: Cross multiply
   30,055x = 64,279 × 64,279
4. Step 4: Simplify right side
   30,055x = 4,131,789,841
5. Step 5: Solve for x
   x = 4,131,789,841/30,055
6. Step 6: Final answer
   x = 137,474.29