Finding the Third Proportional to 10,558.13 and 15,499.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,558.13 : 15,499.69 = 15,499.69 : x
2. Step 2: Convert to fraction form
   10,558.13/15,499.69 = 15,499.69/x
3. Step 3: Cross multiply
   10,558.13x = 15,499.69 × 15,499.69
4. Step 4: Simplify right side
   10,558.13x = 240,240,312.60
5. Step 5: Solve for x
   x = 240,240,312.60/10,558.13
6. Step 6: Final answer
   x = 22,754.07