Finding the Third Proportional to 1,061,694 and 1,688,718

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,694 : 1,688,718 = 1,688,718 : x
2. Step 2: Convert to fraction form
   1,061,694/1,688,718 = 1,688,718/x
3. Step 3: Cross multiply
   1,061,694x = 1,688,718 × 1,688,718
4. Step 4: Simplify right side
   1,061,694x = 2,851,768,483,524
5. Step 5: Solve for x
   x = 2,851,768,483,524/1,061,694
6. Step 6: Final answer
   x = 2,686,055.01