Finding the Third Proportional to 91,812 and 200,472

Step by Step Solution

1. Step 1: Write the proportion equation
   91,812 : 200,472 = 200,472 : x
2. Step 2: Convert to fraction form
   91,812/200,472 = 200,472/x
3. Step 3: Cross multiply
   91,812x = 200,472 × 200,472
4. Step 4: Simplify right side
   91,812x = 40,189,022,784
5. Step 5: Solve for x
   x = 40,189,022,784/91,812
6. Step 6: Final answer
   x = 437,731.70