Finding the Third Proportional to 4,990.13 and 10,810.88

Step by Step Solution

1. Step 1: Write the proportion equation
   4,990.13 : 10,810.88 = 10,810.88 : x
2. Step 2: Convert to fraction form
   4,990.13/10,810.88 = 10,810.88/x
3. Step 3: Cross multiply
   4,990.13x = 10,810.88 × 10,810.88
4. Step 4: Simplify right side
   4,990.13x = 116,875,018.27
5. Step 5: Solve for x
   x = 116,875,018.27/4,990.13
6. Step 6: Final answer
   x = 23,421.26