Finding the Third Proportional to 12,934.69 and 21,143.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,934.69 : 21,143.53 = 21,143.53 : x
2. Step 2: Convert to fraction form
   12,934.69/21,143.53 = 21,143.53/x
3. Step 3: Cross multiply
   12,934.69x = 21,143.53 × 21,143.53
4. Step 4: Simplify right side
   12,934.69x = 447,048,913.72
5. Step 5: Solve for x
   x = 447,048,913.72/12,934.69
6. Step 6: Final answer
   x = 34,562.02