Finding the Third Proportional to 25,713 and 42,889.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,713 : 42,889.50 = 42,889.50 : x
2. Step 2: Convert to fraction form
   25,713/42,889.50 = 42,889.50/x
3. Step 3: Cross multiply
   25,713x = 42,889.50 × 42,889.50
4. Step 4: Simplify right side
   25,713x = 1,839,509,210.25
5. Step 5: Solve for x
   x = 1,839,509,210.25/25,713
6. Step 6: Final answer
   x = 71,540.05