Finding the Third Proportional to 28,617 and 43,231.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,617 : 43,231.50 = 43,231.50 : x
2. Step 2: Convert to fraction form
   28,617/43,231.50 = 43,231.50/x
3. Step 3: Cross multiply
   28,617x = 43,231.50 × 43,231.50
4. Step 4: Simplify right side
   28,617x = 1,868,962,592.25
5. Step 5: Solve for x
   x = 1,868,962,592.25/28,617
6. Step 6: Final answer
   x = 65,309.52