Finding the Third Proportional to 3,590,606 and 7,856,859

Step by Step Solution

1. Step 1: Write the proportion equation
   3,590,606 : 7,856,859 = 7,856,859 : x
2. Step 2: Convert to fraction form
   3,590,606/7,856,859 = 7,856,859/x
3. Step 3: Cross multiply
   3,590,606x = 7,856,859 × 7,856,859
4. Step 4: Simplify right side
   3,590,606x = 61,730,233,345,881
5. Step 5: Solve for x
   x = 61,730,233,345,881/3,590,606
6. Step 6: Final answer
   x = 17,192,149.00