Finding the Third Proportional to 200,960 and 431,061

Step by Step Solution

1. Step 1: Write the proportion equation
   200,960 : 431,061 = 431,061 : x
2. Step 2: Convert to fraction form
   200,960/431,061 = 431,061/x
3. Step 3: Cross multiply
   200,960x = 431,061 × 431,061
4. Step 4: Simplify right side
   200,960x = 185,813,585,721
5. Step 5: Solve for x
   x = 185,813,585,721/200,960
6. Step 6: Final answer
   x = 924,629.71