Finding the Third Proportional to 17,748 and 39,360

Step by Step Solution

1. Step 1: Write the proportion equation
   17,748 : 39,360 = 39,360 : x
2. Step 2: Convert to fraction form
   17,748/39,360 = 39,360/x
3. Step 3: Cross multiply
   17,748x = 39,360 × 39,360
4. Step 4: Simplify right side
   17,748x = 1,549,209,600
5. Step 5: Solve for x
   x = 1,549,209,600/17,748
6. Step 6: Final answer
   x = 87,289.25