Finding the Third Proportional to 17,862.50 and 39,228.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,862.50 : 39,228.50 = 39,228.50 : x
2. Step 2: Convert to fraction form
   17,862.50/39,228.50 = 39,228.50/x
3. Step 3: Cross multiply
   17,862.50x = 39,228.50 × 39,228.50
4. Step 4: Simplify right side
   17,862.50x = 1,538,875,212.25
5. Step 5: Solve for x
   x = 1,538,875,212.25/17,862.50
6. Step 6: Final answer
   x = 86,151.17