Finding the Third Proportional to 25,978.50 and 39,143.25

Step by Step Solution

1. Step 1: Write the proportion equation
   25,978.50 : 39,143.25 = 39,143.25 : x
2. Step 2: Convert to fraction form
   25,978.50/39,143.25 = 39,143.25/x
3. Step 3: Cross multiply
   25,978.50x = 39,143.25 × 39,143.25
4. Step 4: Simplify right side
   25,978.50x = 1,532,194,020.56
5. Step 5: Solve for x
   x = 1,532,194,020.56/25,978.50
6. Step 6: Final answer
   x = 58,979.31