Finding the Third Proportional to 55,988.25 and 84,870.75

Step by Step Solution

1. Step 1: Write the proportion equation
   55,988.25 : 84,870.75 = 84,870.75 : x
2. Step 2: Convert to fraction form
   55,988.25/84,870.75 = 84,870.75/x
3. Step 3: Cross multiply
   55,988.25x = 84,870.75 × 84,870.75
4. Step 4: Simplify right side
   55,988.25x = 7,203,044,205.56
5. Step 5: Solve for x
   x = 7,203,044,205.56/55,988.25
6. Step 6: Final answer
   x = 128,652.78