Finding the Third Proportional to 4,464,455 and 9,689,986

Step by Step Solution

1. Step 1: Write the proportion equation
   4,464,455 : 9,689,986 = 9,689,986 : x
2. Step 2: Convert to fraction form
   4,464,455/9,689,986 = 9,689,986/x
3. Step 3: Cross multiply
   4,464,455x = 9,689,986 × 9,689,986
4. Step 4: Simplify right side
   4,464,455x = 93,895,828,680,196
5. Step 5: Solve for x
   x = 93,895,828,680,196/4,464,455
6. Step 6: Final answer
   x = 21,031,868.10