Finding the Third Proportional to 5,705,136 and 12,685,860

Step by Step Solution

1. Step 1: Write the proportion equation
   5,705,136 : 12,685,860 = 12,685,860 : x
2. Step 2: Convert to fraction form
   5,705,136/12,685,860 = 12,685,860/x
3. Step 3: Cross multiply
   5,705,136x = 12,685,860 × 12,685,860
4. Step 4: Simplify right side
   5,705,136x = 160,931,043,939,600
5. Step 5: Solve for x
   x = 160,931,043,939,600/5,705,136
6. Step 6: Final answer
   x = 28,208,099.50