Finding the Third Proportional to 1,555.31 and 3,738.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555.31 : 3,738.94 = 3,738.94 : x
2. Step 2: Convert to fraction form
   1,555.31/3,738.94 = 3,738.94/x
3. Step 3: Cross multiply
   1,555.31x = 3,738.94 × 3,738.94
4. Step 4: Simplify right side
   1,555.31x = 13,979,653.63
5. Step 5: Solve for x
   x = 13,979,653.63/1,555.31
6. Step 6: Final answer
   x = 8,988.32