Finding the Third Proportional to 72,198 and 111,113

Step by Step Solution

1. Step 1: Write the proportion equation
   72,198 : 111,113 = 111,113 : x
2. Step 2: Convert to fraction form
   72,198/111,113 = 111,113/x
3. Step 3: Cross multiply
   72,198x = 111,113 × 111,113
4. Step 4: Simplify right side
   72,198x = 12,346,098,769
5. Step 5: Solve for x
   x = 12,346,098,769/72,198
6. Step 6: Final answer
   x = 171,003.33