Finding the Third Proportional to 51,789.38 and 79,973.58

Step by Step Solution

1. Step 1: Write the proportion equation
   51,789.38 : 79,973.58 = 79,973.58 : x
2. Step 2: Convert to fraction form
   51,789.38/79,973.58 = 79,973.58/x
3. Step 3: Cross multiply
   51,789.38x = 79,973.58 × 79,973.58
4. Step 4: Simplify right side
   51,789.38x = 6,395,773,198.12
5. Step 5: Solve for x
   x = 6,395,773,198.12/51,789.38
6. Step 6: Final answer
   x = 123,495.86