Finding the Third Proportional to 55,221.75 and 82,969.31

Step by Step Solution

1. Step 1: Write the proportion equation
   55,221.75 : 82,969.31 = 82,969.31 : x
2. Step 2: Convert to fraction form
   55,221.75/82,969.31 = 82,969.31/x
3. Step 3: Cross multiply
   55,221.75x = 82,969.31 × 82,969.31
4. Step 4: Simplify right side
   55,221.75x = 6,883,906,816.72
5. Step 5: Solve for x
   x = 6,883,906,816.72/55,221.75
6. Step 6: Final answer
   x = 124,659.34