Finding the Third Proportional to 99,734.50 and 213,482

Step by Step Solution

1. Step 1: Write the proportion equation
   99,734.50 : 213,482 = 213,482 : x
2. Step 2: Convert to fraction form
   99,734.50/213,482 = 213,482/x
3. Step 3: Cross multiply
   99,734.50x = 213,482 × 213,482
4. Step 4: Simplify right side
   99,734.50x = 45,574,564,324
5. Step 5: Solve for x
   x = 45,574,564,324/99,734.50
6. Step 6: Final answer
   x = 456,958.87