Finding the Third Proportional to 3,387.38 and 5,146.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,387.38 : 5,146.31 = 5,146.31 : x
2. Step 2: Convert to fraction form
   3,387.38/5,146.31 = 5,146.31/x
3. Step 3: Cross multiply
   3,387.38x = 5,146.31 × 5,146.31
4. Step 4: Simplify right side
   3,387.38x = 26,484,532.35
5. Step 5: Solve for x
   x = 26,484,532.35/3,387.38
6. Step 6: Final answer
   x = 7,818.60