Finding the Third Proportional to 5,640,810 and 8,593,371

Step by Step Solution

1. Step 1: Write the proportion equation
   5,640,810 : 8,593,371 = 8,593,371 : x
2. Step 2: Convert to fraction form
   5,640,810/8,593,371 = 8,593,371/x
3. Step 3: Cross multiply
   5,640,810x = 8,593,371 × 8,593,371
4. Step 4: Simplify right side
   5,640,810x = 73,846,025,143,641
5. Step 5: Solve for x
   x = 73,846,025,143,641/5,640,810
6. Step 6: Final answer
   x = 13,091,386.72