Finding the Third Proportional to 777,843 and 1,688,526

Step by Step Solution

1. Step 1: Write the proportion equation
   777,843 : 1,688,526 = 1,688,526 : x
2. Step 2: Convert to fraction form
   777,843/1,688,526 = 1,688,526/x
3. Step 3: Cross multiply
   777,843x = 1,688,526 × 1,688,526
4. Step 4: Simplify right side
   777,843x = 2,851,120,052,676
5. Step 5: Solve for x
   x = 2,851,120,052,676/777,843
6. Step 6: Final answer
   x = 3,665,418.41