Finding the Third Proportional to 72,432 and 109,134

Step by Step Solution

1. Step 1: Write the proportion equation
   72,432 : 109,134 = 109,134 : x
2. Step 2: Convert to fraction form
   72,432/109,134 = 109,134/x
3. Step 3: Cross multiply
   72,432x = 109,134 × 109,134
4. Step 4: Simplify right side
   72,432x = 11,910,229,956
5. Step 5: Solve for x
   x = 11,910,229,956/72,432
6. Step 6: Final answer
   x = 164,433.26