Finding the Third Proportional to 15,156 and 30,930

Step by Step Solution

1. Step 1: Write the proportion equation
   15,156 : 30,930 = 30,930 : x
2. Step 2: Convert to fraction form
   15,156/30,930 = 30,930/x
3. Step 3: Cross multiply
   15,156x = 30,930 × 30,930
4. Step 4: Simplify right side
   15,156x = 956,664,900
5. Step 5: Solve for x
   x = 956,664,900/15,156
6. Step 6: Final answer
   x = 63,121.20