Finding the Third Proportional to 7,980,284 and 12,382,116

Step by Step Solution

1. Step 1: Write the proportion equation
   7,980,284 : 12,382,116 = 12,382,116 : x
2. Step 2: Convert to fraction form
   7,980,284/12,382,116 = 12,382,116/x
3. Step 3: Cross multiply
   7,980,284x = 12,382,116 × 12,382,116
4. Step 4: Simplify right side
   7,980,284x = 153,316,796,637,456
5. Step 5: Solve for x
   x = 153,316,796,637,456/7,980,284
6. Step 6: Final answer
   x = 19,211,947.42