Finding the Third Proportional to 54,271.50 and 84,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,271.50 : 84,880.50 = 84,880.50 : x
2. Step 2: Convert to fraction form
   54,271.50/84,880.50 = 84,880.50/x
3. Step 3: Cross multiply
   54,271.50x = 84,880.50 × 84,880.50
4. Step 4: Simplify right side
   54,271.50x = 7,204,699,280.25
5. Step 5: Solve for x
   x = 7,204,699,280.25/54,271.50
6. Step 6: Final answer
   x = 132,752.90