Finding the Third Proportional to 699,168 and 1,069,128

Step by Step Solution

1. Step 1: Write the proportion equation
   699,168 : 1,069,128 = 1,069,128 : x
2. Step 2: Convert to fraction form
   699,168/1,069,128 = 1,069,128/x
3. Step 3: Cross multiply
   699,168x = 1,069,128 × 1,069,128
4. Step 4: Simplify right side
   699,168x = 1,143,034,680,384
5. Step 5: Solve for x
   x = 1,143,034,680,384/699,168
6. Step 6: Final answer
   x = 1,634,849.82