Finding the Third Proportional to 55,259.50 and 84,986.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,259.50 : 84,986.75 = 84,986.75 : x
2. Step 2: Convert to fraction form
   55,259.50/84,986.75 = 84,986.75/x
3. Step 3: Cross multiply
   55,259.50x = 84,986.75 × 84,986.75
4. Step 4: Simplify right side
   55,259.50x = 7,222,747,675.56
5. Step 5: Solve for x
   x = 7,222,747,675.56/55,259.50
6. Step 6: Final answer
   x = 130,705.99