Finding the Third Proportional to 72,331 and 108,066

Step by Step Solution

1. Step 1: Write the proportion equation
   72,331 : 108,066 = 108,066 : x
2. Step 2: Convert to fraction form
   72,331/108,066 = 108,066/x
3. Step 3: Cross multiply
   72,331x = 108,066 × 108,066
4. Step 4: Simplify right side
   72,331x = 11,678,260,356
5. Step 5: Solve for x
   x = 11,678,260,356/72,331
6. Step 6: Final answer
   x = 161,455.81