Finding the Third Proportional to 1,931.63 and 3,111.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.63 : 3,111.19 = 3,111.19 : x
2. Step 2: Convert to fraction form
   1,931.63/3,111.19 = 3,111.19/x
3. Step 3: Cross multiply
   1,931.63x = 3,111.19 × 3,111.19
4. Step 4: Simplify right side
   1,931.63x = 9,679,487.66
5. Step 5: Solve for x
   x = 9,679,487.66/1,931.63
6. Step 6: Final answer
   x = 5,011.06