Finding the Third Proportional to 129,111 and 188,532

Step by Step Solution

1. Step 1: Write the proportion equation
   129,111 : 188,532 = 188,532 : x
2. Step 2: Convert to fraction form
   129,111/188,532 = 188,532/x
3. Step 3: Cross multiply
   129,111x = 188,532 × 188,532
4. Step 4: Simplify right side
   129,111x = 35,544,315,024
5. Step 5: Solve for x
   x = 35,544,315,024/129,111
6. Step 6: Final answer
   x = 275,300.44