Finding the Third Proportional to 1,686,891 and 3,673,279.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686,891 : 3,673,279.50 = 3,673,279.50 : x
2. Step 2: Convert to fraction form
   1,686,891/3,673,279.50 = 3,673,279.50/x
3. Step 3: Cross multiply
   1,686,891x = 3,673,279.50 × 3,673,279.50
4. Step 4: Simplify right side
   1,686,891x = 13,492,982,285,120.25
5. Step 5: Solve for x
   x = 13,492,982,285,120.25/1,686,891
6. Step 6: Final answer
   x = 7,998,728.01