Finding the Third Proportional to 1,686,754 and 2,680,287

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686,754 : 2,680,287 = 2,680,287 : x
2. Step 2: Convert to fraction form
   1,686,754/2,680,287 = 2,680,287/x
3. Step 3: Cross multiply
   1,686,754x = 2,680,287 × 2,680,287
4. Step 4: Simplify right side
   1,686,754x = 7,183,938,402,369
5. Step 5: Solve for x
   x = 7,183,938,402,369/1,686,754
6. Step 6: Final answer
   x = 4,259,031.49