Finding the Third Proportional to 688,345 and 1,476,290

Step by Step Solution

1. Step 1: Write the proportion equation
   688,345 : 1,476,290 = 1,476,290 : x
2. Step 2: Convert to fraction form
   688,345/1,476,290 = 1,476,290/x
3. Step 3: Cross multiply
   688,345x = 1,476,290 × 1,476,290
4. Step 4: Simplify right side
   688,345x = 2,179,432,164,100
5. Step 5: Solve for x
   x = 2,179,432,164,100/688,345
6. Step 6: Final answer
   x = 3,166,191.61