Finding the Third Proportional to 2,129,895 and 4,685,743.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,895 : 4,685,743.69 = 4,685,743.69 : x
2. Step 2: Convert to fraction form
   2,129,895/4,685,743.69 = 4,685,743.69/x
3. Step 3: Cross multiply
   2,129,895x = 4,685,743.69 × 4,685,743.69
4. Step 4: Simplify right side
   2,129,895x = 21,956,193,904,946.10
5. Step 5: Solve for x
   x = 21,956,193,904,946.10/2,129,895
6. Step 6: Final answer
   x = 10,308,580.43