Finding the Third Proportional to 54,870.75 and 84,584.25

Step by Step Solution

1. Step 1: Write the proportion equation
   54,870.75 : 84,584.25 = 84,584.25 : x
2. Step 2: Convert to fraction form
   54,870.75/84,584.25 = 84,584.25/x
3. Step 3: Cross multiply
   54,870.75x = 84,584.25 × 84,584.25
4. Step 4: Simplify right side
   54,870.75x = 7,154,495,348.06
5. Step 5: Solve for x
   x = 7,154,495,348.06/54,870.75
6. Step 6: Final answer
   x = 130,388.15