Finding the Third Proportional to 30,603 and 67,030

Step by Step Solution

1. Step 1: Write the proportion equation
   30,603 : 67,030 = 67,030 : x
2. Step 2: Convert to fraction form
   30,603/67,030 = 67,030/x
3. Step 3: Cross multiply
   30,603x = 67,030 × 67,030
4. Step 4: Simplify right side
   30,603x = 4,493,020,900
5. Step 5: Solve for x
   x = 4,493,020,900/30,603
6. Step 6: Final answer
   x = 146,816.35