Finding the Third Proportional to 43,785.56 and 67,721.06

Step by Step Solution

1. Step 1: Write the proportion equation
   43,785.56 : 67,721.06 = 67,721.06 : x
2. Step 2: Convert to fraction form
   43,785.56/67,721.06 = 67,721.06/x
3. Step 3: Cross multiply
   43,785.56x = 67,721.06 × 67,721.06
4. Step 4: Simplify right side
   43,785.56x = 4,586,142,306.13
5. Step 5: Solve for x
   x = 4,586,142,306.13/43,785.56
6. Step 6: Final answer
   x = 104,740.97