Finding the Third Proportional to 9,120 and 13,942

Step by Step Solution

1. Step 1: Write the proportion equation
   9,120 : 13,942 = 13,942 : x
2. Step 2: Convert to fraction form
   9,120/13,942 = 13,942/x
3. Step 3: Cross multiply
   9,120x = 13,942 × 13,942
4. Step 4: Simplify right side
   9,120x = 194,379,364
5. Step 5: Solve for x
   x = 194,379,364/9,120
6. Step 6: Final answer
   x = 21,313.53