Finding the Third Proportional to 688,446 and 1,491,264

Step by Step Solution

1. Step 1: Write the proportion equation
   688,446 : 1,491,264 = 1,491,264 : x
2. Step 2: Convert to fraction form
   688,446/1,491,264 = 1,491,264/x
3. Step 3: Cross multiply
   688,446x = 1,491,264 × 1,491,264
4. Step 4: Simplify right side
   688,446x = 2,223,868,317,696
5. Step 5: Solve for x
   x = 2,223,868,317,696/688,446
6. Step 6: Final answer
   x = 3,230,272.70