Finding the Third Proportional to 91,224 and 200,430

Step by Step Solution

1. Step 1: Write the proportion equation
   91,224 : 200,430 = 200,430 : x
2. Step 2: Convert to fraction form
   91,224/200,430 = 200,430/x
3. Step 3: Cross multiply
   91,224x = 200,430 × 200,430
4. Step 4: Simplify right side
   91,224x = 40,172,184,900
5. Step 5: Solve for x
   x = 40,172,184,900/91,224
6. Step 6: Final answer
   x = 440,368.60