Finding the Third Proportional to 2,646.38 and 4,186.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,646.38 : 4,186.88 = 4,186.88 : x
2. Step 2: Convert to fraction form
   2,646.38/4,186.88 = 4,186.88/x
3. Step 3: Cross multiply
   2,646.38x = 4,186.88 × 4,186.88
4. Step 4: Simplify right side
   2,646.38x = 17,529,922.27
5. Step 5: Solve for x
   x = 17,529,922.27/2,646.38
6. Step 6: Final answer
   x = 6,624.13