Finding the Third Proportional to 72,020 and 109,025

Step by Step Solution

1. Step 1: Write the proportion equation
   72,020 : 109,025 = 109,025 : x
2. Step 2: Convert to fraction form
   72,020/109,025 = 109,025/x
3. Step 3: Cross multiply
   72,020x = 109,025 × 109,025
4. Step 4: Simplify right side
   72,020x = 11,886,450,625
5. Step 5: Solve for x
   x = 11,886,450,625/72,020
6. Step 6: Final answer
   x = 165,043.75