Finding the Third Proportional to 709,772 and 1,073,128

Step by Step Solution

1. Step 1: Write the proportion equation
   709,772 : 1,073,128 = 1,073,128 : x
2. Step 2: Convert to fraction form
   709,772/1,073,128 = 1,073,128/x
3. Step 3: Cross multiply
   709,772x = 1,073,128 × 1,073,128
4. Step 4: Simplify right side
   709,772x = 1,151,603,704,384
5. Step 5: Solve for x
   x = 1,151,603,704,384/709,772
6. Step 6: Final answer
   x = 1,622,498.08