Finding the Third Proportional to 98,826 and 216,105

Step by Step Solution

1. Step 1: Write the proportion equation
   98,826 : 216,105 = 216,105 : x
2. Step 2: Convert to fraction form
   98,826/216,105 = 216,105/x
3. Step 3: Cross multiply
   98,826x = 216,105 × 216,105
4. Step 4: Simplify right side
   98,826x = 46,701,371,025
5. Step 5: Solve for x
   x = 46,701,371,025/98,826
6. Step 6: Final answer
   x = 472,561.58