Finding the Third Proportional to 81,123 and 121,008

Step by Step Solution

1. Step 1: Write the proportion equation
   81,123 : 121,008 = 121,008 : x
2. Step 2: Convert to fraction form
   81,123/121,008 = 121,008/x
3. Step 3: Cross multiply
   81,123x = 121,008 × 121,008
4. Step 4: Simplify right side
   81,123x = 14,642,936,064
5. Step 5: Solve for x
   x = 14,642,936,064/81,123
6. Step 6: Final answer
   x = 180,502.89