Finding the Third Proportional to 2,129,907 and 4,685,632

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,907 : 4,685,632 = 4,685,632 : x
2. Step 2: Convert to fraction form
   2,129,907/4,685,632 = 4,685,632/x
3. Step 3: Cross multiply
   2,129,907x = 4,685,632 × 4,685,632
4. Step 4: Simplify right side
   2,129,907x = 21,955,147,239,424
5. Step 5: Solve for x
   x = 21,955,147,239,424/2,129,907
6. Step 6: Final answer
   x = 10,308,030.93