Finding the Third Proportional to 4,430,571 and 9,681,186

Step by Step Solution

1. Step 1: Write the proportion equation
   4,430,571 : 9,681,186 = 9,681,186 : x
2. Step 2: Convert to fraction form
   4,430,571/9,681,186 = 9,681,186/x
3. Step 3: Cross multiply
   4,430,571x = 9,681,186 × 9,681,186
4. Step 4: Simplify right side
   4,430,571x = 93,725,362,366,596
5. Step 5: Solve for x
   x = 93,725,362,366,596/4,430,571
6. Step 6: Final answer
   x = 21,154,240.02