Finding the Third Proportional to 1,136.63 and 2,488.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,136.63 : 2,488.88 = 2,488.88 : x
2. Step 2: Convert to fraction form
   1,136.63/2,488.88 = 2,488.88/x
3. Step 3: Cross multiply
   1,136.63x = 2,488.88 × 2,488.88
4. Step 4: Simplify right side
   1,136.63x = 6,194,498.77
5. Step 5: Solve for x
   x = 6,194,498.77/1,136.63
6. Step 6: Final answer
   x = 5,449.91