Finding the Third Proportional to 72,030 and 109,040

Step by Step Solution

1. Step 1: Write the proportion equation
   72,030 : 109,040 = 109,040 : x
2. Step 2: Convert to fraction form
   72,030/109,040 = 109,040/x
3. Step 3: Cross multiply
   72,030x = 109,040 × 109,040
4. Step 4: Simplify right side
   72,030x = 11,889,721,600
5. Step 5: Solve for x
   x = 11,889,721,600/72,030
6. Step 6: Final answer
   x = 165,066.24