Finding the Third Proportional to 28,161.42 and 43,857.70

Step by Step Solution

1. Step 1: Write the proportion equation
   28,161.42 : 43,857.70 = 43,857.70 : x
2. Step 2: Convert to fraction form
   28,161.42/43,857.70 = 43,857.70/x
3. Step 3: Cross multiply
   28,161.42x = 43,857.70 × 43,857.70
4. Step 4: Simplify right side
   28,161.42x = 1,923,498,123.40
5. Step 5: Solve for x
   x = 1,923,498,123.40/28,161.42
6. Step 6: Final answer
   x = 68,302.59