Finding the Third Proportional to 688,059.50 and 1,062,768

Step by Step Solution

1. Step 1: Write the proportion equation
   688,059.50 : 1,062,768 = 1,062,768 : x
2. Step 2: Convert to fraction form
   688,059.50/1,062,768 = 1,062,768/x
3. Step 3: Cross multiply
   688,059.50x = 1,062,768 × 1,062,768
4. Step 4: Simplify right side
   688,059.50x = 1,129,475,821,824
5. Step 5: Solve for x
   x = 1,129,475,821,824/688,059.50
6. Step 6: Final answer
   x = 1,641,538.01