Finding the Third Proportional to 1,994.85 and 3,186.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994.85 : 3,186.89 = 3,186.89 : x
2. Step 2: Convert to fraction form
   1,994.85/3,186.89 = 3,186.89/x
3. Step 3: Cross multiply
   1,994.85x = 3,186.89 × 3,186.89
4. Step 4: Simplify right side
   1,994.85x = 10,156,296.07
5. Step 5: Solve for x
   x = 10,156,296.07/1,994.85
6. Step 6: Final answer
   x = 5,091.26