Finding the Third Proportional to 638,012 and 1,391,932

Step by Step Solution

1. Step 1: Write the proportion equation
   638,012 : 1,391,932 = 1,391,932 : x
2. Step 2: Convert to fraction form
   638,012/1,391,932 = 1,391,932/x
3. Step 3: Cross multiply
   638,012x = 1,391,932 × 1,391,932
4. Step 4: Simplify right side
   638,012x = 1,937,474,692,624
5. Step 5: Solve for x
   x = 1,937,474,692,624/638,012
6. Step 6: Final answer
   x = 3,036,737.07