Finding the Third Proportional to 83,036.81 and 128,930.06

Step by Step Solution

1. Step 1: Write the proportion equation
   83,036.81 : 128,930.06 = 128,930.06 : x
2. Step 2: Convert to fraction form
   83,036.81/128,930.06 = 128,930.06/x
3. Step 3: Cross multiply
   83,036.81x = 128,930.06 × 128,930.06
4. Step 4: Simplify right side
   83,036.81x = 16,622,961,016.25
5. Step 5: Solve for x
   x = 16,622,961,016.25/83,036.81
6. Step 6: Final answer
   x = 200,187.85