Finding the Third Proportional to 30,620 and 43,116

Step by Step Solution

1. Step 1: Write the proportion equation
   30,620 : 43,116 = 43,116 : x
2. Step 2: Convert to fraction form
   30,620/43,116 = 43,116/x
3. Step 3: Cross multiply
   30,620x = 43,116 × 43,116
4. Step 4: Simplify right side
   30,620x = 1,858,989,456
5. Step 5: Solve for x
   x = 1,858,989,456/30,620
6. Step 6: Final answer
   x = 60,711.61