Finding the Third Proportional to 3,561,870 and 7,920,996

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561,870 : 7,920,996 = 7,920,996 : x
2. Step 2: Convert to fraction form
   3,561,870/7,920,996 = 7,920,996/x
3. Step 3: Cross multiply
   3,561,870x = 7,920,996 × 7,920,996
4. Step 4: Simplify right side
   3,561,870x = 62,742,177,632,016
5. Step 5: Solve for x
   x = 62,742,177,632,016/3,561,870
6. Step 6: Final answer
   x = 17,614,954.40