Finding the Third Proportional to 20,930 and 45,670

Step by Step Solution

1. Step 1: Write the proportion equation
   20,930 : 45,670 = 45,670 : x
2. Step 2: Convert to fraction form
   20,930/45,670 = 45,670/x
3. Step 3: Cross multiply
   20,930x = 45,670 × 45,670
4. Step 4: Simplify right side
   20,930x = 2,085,748,900
5. Step 5: Solve for x
   x = 2,085,748,900/20,930
6. Step 6: Final answer
   x = 99,653.55