Finding the Third Proportional to 52,936.51 and 81,999.69

Step by Step Solution

1. Step 1: Write the proportion equation
   52,936.51 : 81,999.69 = 81,999.69 : x
2. Step 2: Convert to fraction form
   52,936.51/81,999.69 = 81,999.69/x
3. Step 3: Cross multiply
   52,936.51x = 81,999.69 × 81,999.69
4. Step 4: Simplify right side
   52,936.51x = 6,723,948,429.79
5. Step 5: Solve for x
   x = 6,723,948,429.79/52,936.51
6. Step 6: Final answer
   x = 127,019.12