Finding the Third Proportional to 7,980,308 and 12,382,150

Step by Step Solution

1. Step 1: Write the proportion equation
   7,980,308 : 12,382,150 = 12,382,150 : x
2. Step 2: Convert to fraction form
   7,980,308/12,382,150 = 12,382,150/x
3. Step 3: Cross multiply
   7,980,308x = 12,382,150 × 12,382,150
4. Step 4: Simplify right side
   7,980,308x = 153,317,638,622,500
5. Step 5: Solve for x
   x = 153,317,638,622,500/7,980,308
6. Step 6: Final answer
   x = 19,211,995.15