Finding the Third Proportional to 72,672 and 111,118

Step by Step Solution

1. Step 1: Write the proportion equation
   72,672 : 111,118 = 111,118 : x
2. Step 2: Convert to fraction form
   72,672/111,118 = 111,118/x
3. Step 3: Cross multiply
   72,672x = 111,118 × 111,118
4. Step 4: Simplify right side
   72,672x = 12,347,209,924
5. Step 5: Solve for x
   x = 12,347,209,924/72,672
6. Step 6: Final answer
   x = 169,903.26