Finding the Third Proportional to 53,596.69 and 78,789.38

Step by Step Solution

1. Step 1: Write the proportion equation
   53,596.69 : 78,789.38 = 78,789.38 : x
2. Step 2: Convert to fraction form
   53,596.69/78,789.38 = 78,789.38/x
3. Step 3: Cross multiply
   53,596.69x = 78,789.38 × 78,789.38
4. Step 4: Simplify right side
   53,596.69x = 6,207,765,612.89
5. Step 5: Solve for x
   x = 6,207,765,612.89/53,596.69
6. Step 6: Final answer
   x = 115,823.68