Finding the Third Proportional to 31,055 and 67,030

Step by Step Solution

1. Step 1: Write the proportion equation
   31,055 : 67,030 = 67,030 : x
2. Step 2: Convert to fraction form
   31,055/67,030 = 67,030/x
3. Step 3: Cross multiply
   31,055x = 67,030 × 67,030
4. Step 4: Simplify right side
   31,055x = 4,493,020,900
5. Step 5: Solve for x
   x = 4,493,020,900/31,055
6. Step 6: Final answer
   x = 144,679.47