Finding the Third Proportional to 5,585,557 and 8,540,792

Step by Step Solution

1. Step 1: Write the proportion equation
   5,585,557 : 8,540,792 = 8,540,792 : x
2. Step 2: Convert to fraction form
   5,585,557/8,540,792 = 8,540,792/x
3. Step 3: Cross multiply
   5,585,557x = 8,540,792 × 8,540,792
4. Step 4: Simplify right side
   5,585,557x = 72,945,127,987,264
5. Step 5: Solve for x
   x = 72,945,127,987,264/5,585,557
6. Step 6: Final answer
   x = 13,059,597.81