Finding the Third Proportional to 5,313 and 10,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,313 : 10,612.50 = 10,612.50 : x
2. Step 2: Convert to fraction form
   5,313/10,612.50 = 10,612.50/x
3. Step 3: Cross multiply
   5,313x = 10,612.50 × 10,612.50
4. Step 4: Simplify right side
   5,313x = 112,625,156.25
5. Step 5: Solve for x
   x = 112,625,156.25/5,313
6. Step 6: Final answer
   x = 21,198.03