Finding the Third Proportional to 72,263 and 111,212

Step by Step Solution

1. Step 1: Write the proportion equation
   72,263 : 111,212 = 111,212 : x
2. Step 2: Convert to fraction form
   72,263/111,212 = 111,212/x
3. Step 3: Cross multiply
   72,263x = 111,212 × 111,212
4. Step 4: Simplify right side
   72,263x = 12,368,108,944
5. Step 5: Solve for x
   x = 12,368,108,944/72,263
6. Step 6: Final answer
   x = 171,154.10