Finding the Third Proportional to 688,388 and 1,491,162

Step by Step Solution

1. Step 1: Write the proportion equation
   688,388 : 1,491,162 = 1,491,162 : x
2. Step 2: Convert to fraction form
   688,388/1,491,162 = 1,491,162/x
3. Step 3: Cross multiply
   688,388x = 1,491,162 × 1,491,162
4. Step 4: Simplify right side
   688,388x = 2,223,564,110,244
5. Step 5: Solve for x
   x = 2,223,564,110,244/688,388
6. Step 6: Final answer
   x = 3,230,102.95