Finding the Third Proportional to 91,464 and 200,418

Step by Step Solution

1. Step 1: Write the proportion equation
   91,464 : 200,418 = 200,418 : x
2. Step 2: Convert to fraction form
   91,464/200,418 = 200,418/x
3. Step 3: Cross multiply
   91,464x = 200,418 × 200,418
4. Step 4: Simplify right side
   91,464x = 40,167,374,724
5. Step 5: Solve for x
   x = 40,167,374,724/91,464
6. Step 6: Final answer
   x = 439,160.49