Finding the Third Proportional to 54,764.50 and 82,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,764.50 : 82,389.50 = 82,389.50 : x
2. Step 2: Convert to fraction form
   54,764.50/82,389.50 = 82,389.50/x
3. Step 3: Cross multiply
   54,764.50x = 82,389.50 × 82,389.50
4. Step 4: Simplify right side
   54,764.50x = 6,788,029,710.25
5. Step 5: Solve for x
   x = 6,788,029,710.25/54,764.50
6. Step 6: Final answer
   x = 123,949.45