Finding the Third Proportional to 39,440 and 59,570

Step by Step Solution

1. Step 1: Write the proportion equation
   39,440 : 59,570 = 59,570 : x
2. Step 2: Convert to fraction form
   39,440/59,570 = 59,570/x
3. Step 3: Cross multiply
   39,440x = 59,570 × 59,570
4. Step 4: Simplify right side
   39,440x = 3,548,584,900
5. Step 5: Solve for x
   x = 3,548,584,900/39,440
6. Step 6: Final answer
   x = 89,974.26