Finding the Third Proportional to 1,680,026 and 3,686,668

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680,026 : 3,686,668 = 3,686,668 : x
2. Step 2: Convert to fraction form
   1,680,026/3,686,668 = 3,686,668/x
3. Step 3: Cross multiply
   1,680,026x = 3,686,668 × 3,686,668
4. Step 4: Simplify right side
   1,680,026x = 13,591,520,942,224
5. Step 5: Solve for x
   x = 13,591,520,942,224/1,680,026
6. Step 6: Final answer
   x = 8,090,065.83