Finding the Third Proportional to 99,282 and 216,060

Step by Step Solution

1. Step 1: Write the proportion equation
   99,282 : 216,060 = 216,060 : x
2. Step 2: Convert to fraction form
   99,282/216,060 = 216,060/x
3. Step 3: Cross multiply
   99,282x = 216,060 × 216,060
4. Step 4: Simplify right side
   99,282x = 46,681,923,600
5. Step 5: Solve for x
   x = 46,681,923,600/99,282
6. Step 6: Final answer
   x = 470,195.24