Finding the Third Proportional to 13,578 and 28,397.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,578 : 28,397.25 = 28,397.25 : x
2. Step 2: Convert to fraction form
   13,578/28,397.25 = 28,397.25/x
3. Step 3: Cross multiply
   13,578x = 28,397.25 × 28,397.25
4. Step 4: Simplify right side
   13,578x = 806,403,807.56
5. Step 5: Solve for x
   x = 806,403,807.56/13,578
6. Step 6: Final answer
   x = 59,390.47