Finding the Third Proportional to 84,618 and 126,940.50

Step by Step Solution

1. Step 1: Write the proportion equation
   84,618 : 126,940.50 = 126,940.50 : x
2. Step 2: Convert to fraction form
   84,618/126,940.50 = 126,940.50/x
3. Step 3: Cross multiply
   84,618x = 126,940.50 × 126,940.50
4. Step 4: Simplify right side
   84,618x = 16,113,890,540.25
5. Step 5: Solve for x
   x = 16,113,890,540.25/84,618
6. Step 6: Final answer
   x = 190,431.00