Finding the Third Proportional to 91,600 and 200,912

Step by Step Solution

1. Step 1: Write the proportion equation
   91,600 : 200,912 = 200,912 : x
2. Step 2: Convert to fraction form
   91,600/200,912 = 200,912/x
3. Step 3: Cross multiply
   91,600x = 200,912 × 200,912
4. Step 4: Simplify right side
   91,600x = 40,365,631,744
5. Step 5: Solve for x
   x = 40,365,631,744/91,600
6. Step 6: Final answer
   x = 440,672.84