Finding the Third Proportional to 1,891.03 and 3,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891.03 : 3,116.72 = 3,116.72 : x
2. Step 2: Convert to fraction form
   1,891.03/3,116.72 = 3,116.72/x
3. Step 3: Cross multiply
   1,891.03x = 3,116.72 × 3,116.72
4. Step 4: Simplify right side
   1,891.03x = 9,713,935.77
5. Step 5: Solve for x
   x = 9,713,935.77/1,891.03
6. Step 6: Final answer
   x = 5,136.85