Finding the Third Proportional to 28,405.50 and 43,198.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,405.50 : 43,198.50 = 43,198.50 : x
2. Step 2: Convert to fraction form
   28,405.50/43,198.50 = 43,198.50/x
3. Step 3: Cross multiply
   28,405.50x = 43,198.50 × 43,198.50
4. Step 4: Simplify right side
   28,405.50x = 1,866,110,402.25
5. Step 5: Solve for x
   x = 1,866,110,402.25/28,405.50
6. Step 6: Final answer
   x = 65,695.39