Finding the Third Proportional to 17,603.25 and 26,407.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,603.25 : 26,407.50 = 26,407.50 : x
2. Step 2: Convert to fraction form
   17,603.25/26,407.50 = 26,407.50/x
3. Step 3: Cross multiply
   17,603.25x = 26,407.50 × 26,407.50
4. Step 4: Simplify right side
   17,603.25x = 697,356,056.25
5. Step 5: Solve for x
   x = 697,356,056.25/17,603.25
6. Step 6: Final answer
   x = 39,615.19