Finding the Third Proportional to 30,038 and 61,980

Step by Step Solution

1. Step 1: Write the proportion equation
   30,038 : 61,980 = 61,980 : x
2. Step 2: Convert to fraction form
   30,038/61,980 = 61,980/x
3. Step 3: Cross multiply
   30,038x = 61,980 × 61,980
4. Step 4: Simplify right side
   30,038x = 3,841,520,400
5. Step 5: Solve for x
   x = 3,841,520,400/30,038
6. Step 6: Final answer
   x = 127,888.69