Finding the Third Proportional to 70,988 and 109,902

Step by Step Solution

1. Step 1: Write the proportion equation
   70,988 : 109,902 = 109,902 : x
2. Step 2: Convert to fraction form
   70,988/109,902 = 109,902/x
3. Step 3: Cross multiply
   70,988x = 109,902 × 109,902
4. Step 4: Simplify right side
   70,988x = 12,078,449,604
5. Step 5: Solve for x
   x = 12,078,449,604/70,988
6. Step 6: Final answer
   x = 170,147.77