Finding the Third Proportional to 3,557,223 and 7,805,805.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,557,223 : 7,805,805.50 = 7,805,805.50 : x
2. Step 2: Convert to fraction form
   3,557,223/7,805,805.50 = 7,805,805.50/x
3. Step 3: Cross multiply
   3,557,223x = 7,805,805.50 × 7,805,805.50
4. Step 4: Simplify right side
   3,557,223x = 60,930,599,503,830.25
5. Step 5: Solve for x
   x = 60,930,599,503,830.25/3,557,223
6. Step 6: Final answer
   x = 17,128,698.29