Finding the Third Proportional to 81,429.50 and 116,229

Step by Step Solution

1. Step 1: Write the proportion equation
   81,429.50 : 116,229 = 116,229 : x
2. Step 2: Convert to fraction form
   81,429.50/116,229 = 116,229/x
3. Step 3: Cross multiply
   81,429.50x = 116,229 × 116,229
4. Step 4: Simplify right side
   81,429.50x = 13,509,180,441
5. Step 5: Solve for x
   x = 13,509,180,441/81,429.50
6. Step 6: Final answer
   x = 165,900.32