Finding the Third Proportional to 688,613.50 and 1,476,839

Step by Step Solution

1. Step 1: Write the proportion equation
   688,613.50 : 1,476,839 = 1,476,839 : x
2. Step 2: Convert to fraction form
   688,613.50/1,476,839 = 1,476,839/x
3. Step 3: Cross multiply
   688,613.50x = 1,476,839 × 1,476,839
4. Step 4: Simplify right side
   688,613.50x = 2,181,053,431,921
5. Step 5: Solve for x
   x = 2,181,053,431,921/688,613.50
6. Step 6: Final answer
   x = 3,167,311.46