Finding the Third Proportional to 39,809 and 87,002

Step by Step Solution

1. Step 1: Write the proportion equation
   39,809 : 87,002 = 87,002 : x
2. Step 2: Convert to fraction form
   39,809/87,002 = 87,002/x
3. Step 3: Cross multiply
   39,809x = 87,002 × 87,002
4. Step 4: Simplify right side
   39,809x = 7,569,348,004
5. Step 5: Solve for x
   x = 7,569,348,004/39,809
6. Step 6: Final answer
   x = 190,141.63