Finding the Third Proportional to 43,124.91 and 66,942.70

Step by Step Solution

1. Step 1: Write the proportion equation
   43,124.91 : 66,942.70 = 66,942.70 : x
2. Step 2: Convert to fraction form
   43,124.91/66,942.70 = 66,942.70/x
3. Step 3: Cross multiply
   43,124.91x = 66,942.70 × 66,942.70
4. Step 4: Simplify right side
   43,124.91x = 4,481,325,501.68
5. Step 5: Solve for x
   x = 4,481,325,501.68/43,124.91
6. Step 6: Final answer
   x = 103,915.02