Finding the Third Proportional to 3,513.75 and 7,432.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,513.75 : 7,432.50 = 7,432.50 : x
2. Step 2: Convert to fraction form
   3,513.75/7,432.50 = 7,432.50/x
3. Step 3: Cross multiply
   3,513.75x = 7,432.50 × 7,432.50
4. Step 4: Simplify right side
   3,513.75x = 55,242,056.25
5. Step 5: Solve for x
   x = 55,242,056.25/3,513.75
6. Step 6: Final answer
   x = 15,721.68