Finding the Third Proportional to 428,768 and 914,492

Step by Step Solution

1. Step 1: Write the proportion equation
   428,768 : 914,492 = 914,492 : x
2. Step 2: Convert to fraction form
   428,768/914,492 = 914,492/x
3. Step 3: Cross multiply
   428,768x = 914,492 × 914,492
4. Step 4: Simplify right side
   428,768x = 836,295,618,064
5. Step 5: Solve for x
   x = 836,295,618,064/428,768
6. Step 6: Final answer
   x = 1,950,461.83