Finding the Third Proportional to 39,718 and 58,360

Step by Step Solution

1. Step 1: Write the proportion equation
   39,718 : 58,360 = 58,360 : x
2. Step 2: Convert to fraction form
   39,718/58,360 = 58,360/x
3. Step 3: Cross multiply
   39,718x = 58,360 × 58,360
4. Step 4: Simplify right side
   39,718x = 3,405,889,600
5. Step 5: Solve for x
   x = 3,405,889,600/39,718
6. Step 6: Final answer
   x = 85,751.79