Finding the Third Proportional to 1,612.50 and 3,532.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.50 : 3,532.50 = 3,532.50 : x
2. Step 2: Convert to fraction form
   1,612.50/3,532.50 = 3,532.50/x
3. Step 3: Cross multiply
   1,612.50x = 3,532.50 × 3,532.50
4. Step 4: Simplify right side
   1,612.50x = 12,478,556.25
5. Step 5: Solve for x
   x = 12,478,556.25/1,612.50
6. Step 6: Final answer
   x = 7,738.64