Finding the Third Proportional to 54,209.25 and 83,427.47

Step by Step Solution

1. Step 1: Write the proportion equation
   54,209.25 : 83,427.47 = 83,427.47 : x
2. Step 2: Convert to fraction form
   54,209.25/83,427.47 = 83,427.47/x
3. Step 3: Cross multiply
   54,209.25x = 83,427.47 × 83,427.47
4. Step 4: Simplify right side
   54,209.25x = 6,960,142,542.03
5. Step 5: Solve for x
   x = 6,960,142,542.03/54,209.25
6. Step 6: Final answer
   x = 128,394.00