Finding the Third Proportional to 189,928 and 443,715

Step by Step Solution

1. Step 1: Write the proportion equation
   189,928 : 443,715 = 443,715 : x
2. Step 2: Convert to fraction form
   189,928/443,715 = 443,715/x
3. Step 3: Cross multiply
   189,928x = 443,715 × 443,715
4. Step 4: Simplify right side
   189,928x = 196,883,001,225
5. Step 5: Solve for x
   x = 196,883,001,225/189,928
6. Step 6: Final answer
   x = 1,036,619.15