Finding the Third Proportional to 30,894 and 63,242

Step by Step Solution

1. Step 1: Write the proportion equation
   30,894 : 63,242 = 63,242 : x
2. Step 2: Convert to fraction form
   30,894/63,242 = 63,242/x
3. Step 3: Cross multiply
   30,894x = 63,242 × 63,242
4. Step 4: Simplify right side
   30,894x = 3,999,550,564
5. Step 5: Solve for x
   x = 3,999,550,564/30,894
6. Step 6: Final answer
   x = 129,460.43