Finding the Third Proportional to 72,660 and 108,996

Step by Step Solution

1. Step 1: Write the proportion equation
   72,660 : 108,996 = 108,996 : x
2. Step 2: Convert to fraction form
   72,660/108,996 = 108,996/x
3. Step 3: Cross multiply
   72,660x = 108,996 × 108,996
4. Step 4: Simplify right side
   72,660x = 11,880,128,016
5. Step 5: Solve for x
   x = 11,880,128,016/72,660
6. Step 6: Final answer
   x = 163,503.00