Finding the Third Proportional to 99,662 and 212,244

Step by Step Solution

1. Step 1: Write the proportion equation
   99,662 : 212,244 = 212,244 : x
2. Step 2: Convert to fraction form
   99,662/212,244 = 212,244/x
3. Step 3: Cross multiply
   99,662x = 212,244 × 212,244
4. Step 4: Simplify right side
   99,662x = 45,047,515,536
5. Step 5: Solve for x
   x = 45,047,515,536/99,662
6. Step 6: Final answer
   x = 452,002.93