Finding the Third Proportional to 688,370 and 1,476,384

Step by Step Solution

1. Step 1: Write the proportion equation
   688,370 : 1,476,384 = 1,476,384 : x
2. Step 2: Convert to fraction form
   688,370/1,476,384 = 1,476,384/x
3. Step 3: Cross multiply
   688,370x = 1,476,384 × 1,476,384
4. Step 4: Simplify right side
   688,370x = 2,179,709,715,456
5. Step 5: Solve for x
   x = 2,179,709,715,456/688,370
6. Step 6: Final answer
   x = 3,166,479.82