Finding the Third Proportional to 688,613 and 1,476,838

Step by Step Solution

1. Step 1: Write the proportion equation
   688,613 : 1,476,838 = 1,476,838 : x
2. Step 2: Convert to fraction form
   688,613/1,476,838 = 1,476,838/x
3. Step 3: Cross multiply
   688,613x = 1,476,838 × 1,476,838
4. Step 4: Simplify right side
   688,613x = 2,181,050,478,244
5. Step 5: Solve for x
   x = 2,181,050,478,244/688,613
6. Step 6: Final answer
   x = 3,167,309.47