Finding the Third Proportional to 99,295 and 216,061

Step by Step Solution

1. Step 1: Write the proportion equation
   99,295 : 216,061 = 216,061 : x
2. Step 2: Convert to fraction form
   99,295/216,061 = 216,061/x
3. Step 3: Cross multiply
   99,295x = 216,061 × 216,061
4. Step 4: Simplify right side
   99,295x = 46,682,355,721
5. Step 5: Solve for x
   x = 46,682,355,721/99,295
6. Step 6: Final answer
   x = 470,138.03