Finding the Third Proportional to 70,443 and 109,989

Step by Step Solution

1. Step 1: Write the proportion equation
   70,443 : 109,989 = 109,989 : x
2. Step 2: Convert to fraction form
   70,443/109,989 = 109,989/x
3. Step 3: Cross multiply
   70,443x = 109,989 × 109,989
4. Step 4: Simplify right side
   70,443x = 12,097,580,121
5. Step 5: Solve for x
   x = 12,097,580,121/70,443
6. Step 6: Final answer
   x = 171,735.73