Finding the Third Proportional to 2,618.16 and 3,731.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.16 : 3,731.91 = 3,731.91 : x
2. Step 2: Convert to fraction form
   2,618.16/3,731.91 = 3,731.91/x
3. Step 3: Cross multiply
   2,618.16x = 3,731.91 × 3,731.91
4. Step 4: Simplify right side
   2,618.16x = 13,927,124.26
5. Step 5: Solve for x
   x = 13,927,124.26/2,618.16
6. Step 6: Final answer
   x = 5,319.44