Finding the Third Proportional to 5,705,146 and 12,685,879

Step by Step Solution

1. Step 1: Write the proportion equation
   5,705,146 : 12,685,879 = 12,685,879 : x
2. Step 2: Convert to fraction form
   5,705,146/12,685,879 = 12,685,879/x
3. Step 3: Cross multiply
   5,705,146x = 12,685,879 × 12,685,879
4. Step 4: Simplify right side
   5,705,146x = 160,931,526,002,641
5. Step 5: Solve for x
   x = 160,931,526,002,641/5,705,146
6. Step 6: Final answer
   x = 28,208,134.55