Finding the Third Proportional to 28,457 and 31,008.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,457 : 31,008.50 = 31,008.50 : x
2. Step 2: Convert to fraction form
   28,457/31,008.50 = 31,008.50/x
3. Step 3: Cross multiply
   28,457x = 31,008.50 × 31,008.50
4. Step 4: Simplify right side
   28,457x = 961,527,072.25
5. Step 5: Solve for x
   x = 961,527,072.25/28,457
6. Step 6: Final answer
   x = 33,788.77