Finding the Third Proportional to 38,991.38 and 85,404.38

Step by Step Solution

1. Step 1: Write the proportion equation
   38,991.38 : 85,404.38 = 85,404.38 : x
2. Step 2: Convert to fraction form
   38,991.38/85,404.38 = 85,404.38/x
3. Step 3: Cross multiply
   38,991.38x = 85,404.38 × 85,404.38
4. Step 4: Simplify right side
   38,991.38x = 7,293,907,269.14
5. Step 5: Solve for x
   x = 7,293,907,269.14/38,991.38
6. Step 6: Final answer
   x = 187,064.63