Finding the Third Proportional to 5,386.50 and 7,274.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,386.50 : 7,274.25 = 7,274.25 : x
2. Step 2: Convert to fraction form
   5,386.50/7,274.25 = 7,274.25/x
3. Step 3: Cross multiply
   5,386.50x = 7,274.25 × 7,274.25
4. Step 4: Simplify right side
   5,386.50x = 52,914,713.06
5. Step 5: Solve for x
   x = 52,914,713.06/5,386.50
6. Step 6: Final answer
   x = 9,823.58