Finding the Third Proportional to 5,146.25 and 10,474.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,146.25 : 10,474.38 = 10,474.38 : x
2. Step 2: Convert to fraction form
   5,146.25/10,474.38 = 10,474.38/x
3. Step 3: Cross multiply
   5,146.25x = 10,474.38 × 10,474.38
4. Step 4: Simplify right side
   5,146.25x = 109,712,531.64
5. Step 5: Solve for x
   x = 109,712,531.64/5,146.25
6. Step 6: Final answer
   x = 21,318.93