Finding the Third Proportional to 72,786 and 111,122

Step by Step Solution

1. Step 1: Write the proportion equation
   72,786 : 111,122 = 111,122 : x
2. Step 2: Convert to fraction form
   72,786/111,122 = 111,122/x
3. Step 3: Cross multiply
   72,786x = 111,122 × 111,122
4. Step 4: Simplify right side
   72,786x = 12,348,098,884
5. Step 5: Solve for x
   x = 12,348,098,884/72,786
6. Step 6: Final answer
   x = 169,649.37