Finding the Third Proportional to 5,827,143 and 12,688,806

Step by Step Solution

1. Step 1: Write the proportion equation
   5,827,143 : 12,688,806 = 12,688,806 : x
2. Step 2: Convert to fraction form
   5,827,143/12,688,806 = 12,688,806/x
3. Step 3: Cross multiply
   5,827,143x = 12,688,806 × 12,688,806
4. Step 4: Simplify right side
   5,827,143x = 161,005,797,705,636
5. Step 5: Solve for x
   x = 161,005,797,705,636/5,827,143
6. Step 6: Final answer
   x = 27,630,315.18