Finding the Third Proportional to 67,902 and 89,298

Step by Step Solution

1. Step 1: Write the proportion equation
   67,902 : 89,298 = 89,298 : x
2. Step 2: Convert to fraction form
   67,902/89,298 = 89,298/x
3. Step 3: Cross multiply
   67,902x = 89,298 × 89,298
4. Step 4: Simplify right side
   67,902x = 7,974,132,804
5. Step 5: Solve for x
   x = 7,974,132,804/67,902
6. Step 6: Final answer
   x = 117,435.90