Finding the Third Proportional to 5,640,832 and 8,593,440

Step by Step Solution

1. Step 1: Write the proportion equation
   5,640,832 : 8,593,440 = 8,593,440 : x
2. Step 2: Convert to fraction form
   5,640,832/8,593,440 = 8,593,440/x
3. Step 3: Cross multiply
   5,640,832x = 8,593,440 × 8,593,440
4. Step 4: Simplify right side
   5,640,832x = 73,847,211,033,600
5. Step 5: Solve for x
   x = 73,847,211,033,600/5,640,832
6. Step 6: Final answer
   x = 13,091,545.90