Finding the Third Proportional to 28,666 and 43,431.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,666 : 43,431.50 = 43,431.50 : x
2. Step 2: Convert to fraction form
   28,666/43,431.50 = 43,431.50/x
3. Step 3: Cross multiply
   28,666x = 43,431.50 × 43,431.50
4. Step 4: Simplify right side
   28,666x = 1,886,295,192.25
5. Step 5: Solve for x
   x = 1,886,295,192.25/28,666
6. Step 6: Final answer
   x = 65,802.53