Finding the Third Proportional to 5,260.50 and 10,602

Step by Step Solution

1. Step 1: Write the proportion equation
   5,260.50 : 10,602 = 10,602 : x
2. Step 2: Convert to fraction form
   5,260.50/10,602 = 10,602/x
3. Step 3: Cross multiply
   5,260.50x = 10,602 × 10,602
4. Step 4: Simplify right side
   5,260.50x = 112,402,404
5. Step 5: Solve for x
   x = 112,402,404/5,260.50
6. Step 6: Final answer
   x = 21,367.25