Finding the Third Proportional to 53,947.97 and 81,671.48

Step by Step Solution

1. Step 1: Write the proportion equation
   53,947.97 : 81,671.48 = 81,671.48 : x
2. Step 2: Convert to fraction form
   53,947.97/81,671.48 = 81,671.48/x
3. Step 3: Cross multiply
   53,947.97x = 81,671.48 × 81,671.48
4. Step 4: Simplify right side
   53,947.97x = 6,670,231,360.02
5. Step 5: Solve for x
   x = 6,670,231,360.02/53,947.97
6. Step 6: Final answer
   x = 123,641.94