Finding the Third Proportional to 3,586,615 and 7,684,905

Step by Step Solution

1. Step 1: Write the proportion equation
   3,586,615 : 7,684,905 = 7,684,905 : x
2. Step 2: Convert to fraction form
   3,586,615/7,684,905 = 7,684,905/x
3. Step 3: Cross multiply
   3,586,615x = 7,684,905 × 7,684,905
4. Step 4: Simplify right side
   3,586,615x = 59,057,764,859,025
5. Step 5: Solve for x
   x = 59,057,764,859,025/3,586,615
6. Step 6: Final answer
   x = 16,466,156.77