Finding the Third Proportional to 688,338.50 and 1,476,320

Step by Step Solution

1. Step 1: Write the proportion equation
   688,338.50 : 1,476,320 = 1,476,320 : x
2. Step 2: Convert to fraction form
   688,338.50/1,476,320 = 1,476,320/x
3. Step 3: Cross multiply
   688,338.50x = 1,476,320 × 1,476,320
4. Step 4: Simplify right side
   688,338.50x = 2,179,520,742,400
5. Step 5: Solve for x
   x = 2,179,520,742,400/688,338.50
6. Step 6: Final answer
   x = 3,166,350.19