Finding the Third Proportional to 109,170 and 140,427

Step by Step Solution

1. Step 1: Write the proportion equation
   109,170 : 140,427 = 140,427 : x
2. Step 2: Convert to fraction form
   109,170/140,427 = 140,427/x
3. Step 3: Cross multiply
   109,170x = 140,427 × 140,427
4. Step 4: Simplify right side
   109,170x = 19,719,742,329
5. Step 5: Solve for x
   x = 19,719,742,329/109,170
6. Step 6: Final answer
   x = 180,633.35