Finding the Third Proportional to 3,118,684 and 4,665,340

Step by Step Solution

1. Step 1: Write the proportion equation
   3,118,684 : 4,665,340 = 4,665,340 : x
2. Step 2: Convert to fraction form
   3,118,684/4,665,340 = 4,665,340/x
3. Step 3: Cross multiply
   3,118,684x = 4,665,340 × 4,665,340
4. Step 4: Simplify right side
   3,118,684x = 21,765,397,315,600
5. Step 5: Solve for x
   x = 21,765,397,315,600/3,118,684
6. Step 6: Final answer
   x = 6,979,032.60