Finding the Third Proportional to 699,128 and 1,069,068

Step by Step Solution

1. Step 1: Write the proportion equation
   699,128 : 1,069,068 = 1,069,068 : x
2. Step 2: Convert to fraction form
   699,128/1,069,068 = 1,069,068/x
3. Step 3: Cross multiply
   699,128x = 1,069,068 × 1,069,068
4. Step 4: Simplify right side
   699,128x = 1,142,906,388,624
5. Step 5: Solve for x
   x = 1,142,906,388,624/699,128
6. Step 6: Final answer
   x = 1,634,759.86