Finding the Third Proportional to 43,107.75 and 66,901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,107.75 : 66,901.50 = 66,901.50 : x
2. Step 2: Convert to fraction form
   43,107.75/66,901.50 = 66,901.50/x
3. Step 3: Cross multiply
   43,107.75x = 66,901.50 × 66,901.50
4. Step 4: Simplify right side
   43,107.75x = 4,475,810,702.25
5. Step 5: Solve for x
   x = 4,475,810,702.25/43,107.75
6. Step 6: Final answer
   x = 103,828.45