Finding the Third Proportional to 1,689,364 and 3,642,788

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689,364 : 3,642,788 = 3,642,788 : x
2. Step 2: Convert to fraction form
   1,689,364/3,642,788 = 3,642,788/x
3. Step 3: Cross multiply
   1,689,364x = 3,642,788 × 3,642,788
4. Step 4: Simplify right side
   1,689,364x = 13,269,904,412,944
5. Step 5: Solve for x
   x = 13,269,904,412,944/1,689,364
6. Step 6: Final answer
   x = 7,854,970.52