Finding the Third Proportional to 688,322 and 1,036,648

Step by Step Solution

1. Step 1: Write the proportion equation
   688,322 : 1,036,648 = 1,036,648 : x
2. Step 2: Convert to fraction form
   688,322/1,036,648 = 1,036,648/x
3. Step 3: Cross multiply
   688,322x = 1,036,648 × 1,036,648
4. Step 4: Simplify right side
   688,322x = 1,074,639,075,904
5. Step 5: Solve for x
   x = 1,074,639,075,904/688,322
6. Step 6: Final answer
   x = 1,561,244.70