Finding the Third Proportional to 220,363.50 and 517,368

Step by Step Solution

1. Step 1: Write the proportion equation
   220,363.50 : 517,368 = 517,368 : x
2. Step 2: Convert to fraction form
   220,363.50/517,368 = 517,368/x
3. Step 3: Cross multiply
   220,363.50x = 517,368 × 517,368
4. Step 4: Simplify right side
   220,363.50x = 267,669,647,424
5. Step 5: Solve for x
   x = 267,669,647,424/220,363.50
6. Step 6: Final answer
   x = 1,214,673.24