Finding the Third Proportional to 7,980,276 and 12,382,104

Step by Step Solution

1. Step 1: Write the proportion equation
   7,980,276 : 12,382,104 = 12,382,104 : x
2. Step 2: Convert to fraction form
   7,980,276/12,382,104 = 12,382,104/x
3. Step 3: Cross multiply
   7,980,276x = 12,382,104 × 12,382,104
4. Step 4: Simplify right side
   7,980,276x = 153,316,499,466,816
5. Step 5: Solve for x
   x = 153,316,499,466,816/7,980,276
6. Step 6: Final answer
   x = 19,211,929.45