Finding the Third Proportional to 2,378,920.50 and 3,557,988

Step by Step Solution

1. Step 1: Write the proportion equation
   2,378,920.50 : 3,557,988 = 3,557,988 : x
2. Step 2: Convert to fraction form
   2,378,920.50/3,557,988 = 3,557,988/x
3. Step 3: Cross multiply
   2,378,920.50x = 3,557,988 × 3,557,988
4. Step 4: Simplify right side
   2,378,920.50x = 12,659,278,608,144
5. Step 5: Solve for x
   x = 12,659,278,608,144/2,378,920.50
6. Step 6: Final answer
   x = 5,321,438.28