Finding the Third Proportional to 688,319 and 1,491,044

Step by Step Solution

1. Step 1: Write the proportion equation
   688,319 : 1,491,044 = 1,491,044 : x
2. Step 2: Convert to fraction form
   688,319/1,491,044 = 1,491,044/x
3. Step 3: Cross multiply
   688,319x = 1,491,044 × 1,491,044
4. Step 4: Simplify right side
   688,319x = 2,223,212,209,936
5. Step 5: Solve for x
   x = 2,223,212,209,936/688,319
6. Step 6: Final answer
   x = 3,229,915.50