Finding the Third Proportional to 1,316.81 and 2,869.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316.81 : 2,869.88 = 2,869.88 : x
2. Step 2: Convert to fraction form
   1,316.81/2,869.88 = 2,869.88/x
3. Step 3: Cross multiply
   1,316.81x = 2,869.88 × 2,869.88
4. Step 4: Simplify right side
   1,316.81x = 8,236,182.52
5. Step 5: Solve for x
   x = 8,236,182.52/1,316.81
6. Step 6: Final answer
   x = 6,254.64