Finding the Third Proportional to 54,730.69 and 83,215.69

Step by Step Solution

1. Step 1: Write the proportion equation
   54,730.69 : 83,215.69 = 83,215.69 : x
2. Step 2: Convert to fraction form
   54,730.69/83,215.69 = 83,215.69/x
3. Step 3: Cross multiply
   54,730.69x = 83,215.69 × 83,215.69
4. Step 4: Simplify right side
   54,730.69x = 6,924,850,646.10
5. Step 5: Solve for x
   x = 6,924,850,646.10/54,730.69
6. Step 6: Final answer
   x = 126,525.92