Finding the Third Proportional to 39,978 and 88,002

Step by Step Solution

1. Step 1: Write the proportion equation
   39,978 : 88,002 = 88,002 : x
2. Step 2: Convert to fraction form
   39,978/88,002 = 88,002/x
3. Step 3: Cross multiply
   39,978x = 88,002 × 88,002
4. Step 4: Simplify right side
   39,978x = 7,744,352,004
5. Step 5: Solve for x
   x = 7,744,352,004/39,978
6. Step 6: Final answer
   x = 193,715.34