Finding the Third Proportional to 10,059.19 and 21,439.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,059.19 : 21,439.69 = 21,439.69 : x
2. Step 2: Convert to fraction form
   10,059.19/21,439.69 = 21,439.69/x
3. Step 3: Cross multiply
   10,059.19x = 21,439.69 × 21,439.69
4. Step 4: Simplify right side
   10,059.19x = 459,660,200.10
5. Step 5: Solve for x
   x = 459,660,200.10/10,059.19
6. Step 6: Final answer
   x = 45,695.56