Finding the Third Proportional to 22,128.19 and 43,147.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,128.19 : 43,147.69 = 43,147.69 : x
2. Step 2: Convert to fraction form
   22,128.19/43,147.69 = 43,147.69/x
3. Step 3: Cross multiply
   22,128.19x = 43,147.69 × 43,147.69
4. Step 4: Simplify right side
   22,128.19x = 1,861,722,936.60
5. Step 5: Solve for x
   x = 1,861,722,936.60/22,128.19
6. Step 6: Final answer
   x = 84,133.55