Finding the Third Proportional to 99,022.50 and 216,108

Step by Step Solution

1. Step 1: Write the proportion equation
   99,022.50 : 216,108 = 216,108 : x
2. Step 2: Convert to fraction form
   99,022.50/216,108 = 216,108/x
3. Step 3: Cross multiply
   99,022.50x = 216,108 × 216,108
4. Step 4: Simplify right side
   99,022.50x = 46,702,667,664
5. Step 5: Solve for x
   x = 46,702,667,664/99,022.50
6. Step 6: Final answer
   x = 471,636.93