Finding the Third Proportional to 1,113 and 2,389.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113 : 2,389.88 = 2,389.88 : x
2. Step 2: Convert to fraction form
   1,113/2,389.88 = 2,389.88/x
3. Step 3: Cross multiply
   1,113x = 2,389.88 × 2,389.88
4. Step 4: Simplify right side
   1,113x = 5,711,502.52
5. Step 5: Solve for x
   x = 5,711,502.52/1,113
6. Step 6: Final answer
   x = 5,131.63