Finding the Third Proportional to 1,685,143 and 3,606,481

Step by Step Solution

1. Step 1: Write the proportion equation
   1,685,143 : 3,606,481 = 3,606,481 : x
2. Step 2: Convert to fraction form
   1,685,143/3,606,481 = 3,606,481/x
3. Step 3: Cross multiply
   1,685,143x = 3,606,481 × 3,606,481
4. Step 4: Simplify right side
   1,685,143x = 13,006,705,203,361
5. Step 5: Solve for x
   x = 13,006,705,203,361/1,685,143
6. Step 6: Final answer
   x = 7,718,457.84