Finding the Third Proportional to 54,290.25 and 81,834.05

Step by Step Solution

1. Step 1: Write the proportion equation
   54,290.25 : 81,834.05 = 81,834.05 : x
2. Step 2: Convert to fraction form
   54,290.25/81,834.05 = 81,834.05/x
3. Step 3: Cross multiply
   54,290.25x = 81,834.05 × 81,834.05
4. Step 4: Simplify right side
   54,290.25x = 6,696,811,227.94
5. Step 5: Solve for x
   x = 6,696,811,227.94/54,290.25
6. Step 6: Final answer
   x = 123,352.01